<!--
                              A DTD for
                     Reference Key Annotation of
                           EDT Entities and
                         RDC Relations in the
                           ACE Evaluations

                          John C. Henderson
                                MITRE
                             2000-01-05


 Extensions made to encode meta-knowledge information associated with event mentions by:

				Paul Thompson
	               National Centre for Text Mining (NaCTeM)
           		  School of Computer Science
            		University of Manchester
	 			   UK

                            21st January 2016


v 1.1 Added versioning for semantic compatibility.
      Added CHARSEQ in reponse to request from George Doddington.
      Replaced ENTITY_NAME tag for encoding attribute with a general
      ENTITY_ATTRIBUTES tag within which can be multiple attributes,
      the only one of which we now have being NAME.

v 1.2 Added extra attributes to SOURCE_FILE element, indicating source,
      author and encoding.

v 1.3 Added ROLE attribute under entity_mention and added GENERIC attribute
      under entity_type.  Also added REFERENCE attribute to entity_mention
      to indicate whether literal or intended.  Also changed ID attribute value
      within document to CDATA (instead of ID)

v 1.4 Added support for RDC relations, their attributes and mentions.
      Also cleaned up and brought things up to date for EDT entities.
      2002/03/24.  David Day.

v 1.4.2 Removed rel_arg_role element, since this is now established within
        SUBTYPE attribute on relation elements.  Added NA as valid value for
        entity_mention REFERENCE attribute.
        2002/05/01.  David Day.

v 1.4.3 Changed all RELATION SUBTYPE values to use hyphens instead of underscore
        characters in the case of multi-word phrases (e.g., "LOCATED-IN").
        2002/05/28.  David Day.

v 1.4.4 Modified RELATION element SUBTYPE attribute values: Added BASED-IN.
        Removed NA from ENTITY_MENTION attribute values for ROLE and REFERENCE.
        Instead of being REQUIRED these attributes are now IMPLIED (that is,
        they are optional).

v 2.0   SUBTYPE modifications:
          Added:   CLIENT.
          Changed: MEMBER-OF to MEMBER.
          Removed: CONTAINED-IN.
        VERSION modifications:
          Changed: 1.4.4 to 2.0.
        David; 2002-06-20.

v 2.0.1 SUBTYPE modifications:
                  Added: FROM
                                 BRANCH
                             LOCATED-IN (LOCATED already existed; left both)
                Robyn; 2002-06-28

v 3.* became ALF (ACE LDC Format)

v 4.0.0 LDC and BBN update: updated to version 4.0.0 to match new ALF dtd

v 4.1.0 LDC: updated for the ACE4 Pilot exercise; 2004-11-11

v 4.2.0 LDC: updated for the ACE4 Pilot exercise; additional changes; 
        2004-11-15.

v 5.0.x LDC, NIST, MITRE: updated for the AC2005 Pilot exerecise to
        support the additional evaluation of Events and Entity
        Normalization & Disambiguation (END).  2004-11 through 2005-01.

v 5.1.0 LDC, ACE Community: Updated for the data for ACE 2005 training
        and evaluation data; Changed "quantity" to "value"; added new
        "timex2" and "timex2_mention" elements, and removed
        TIMEX2-related definitions from "value"; relation_mention and
        event_mention extents are now required; entity_mention heads are
        now required; updated types and subtypes; removed "PRE" from
        entity_mention TYPE and LDCTYPE; removed "CMC", "MWH" and "MSC"
        from entity_mention LDCTYPE; disallowed multiple anchors in
        event_mention; made the SUBTYPE attribute of entity to #REQUIRED

v 5.1.1 (1) TYPE="Life" SUBTYPE="Date" eliminated from event inventory.
        (2) Bounding box specification updated.

v 6.1.1 (1) mk-cue and mk-source elements added as children of the document element,
               to encode meta-knowledge related text spans.  
	(2) Attributes MK-GENERICITY, MK-MODALITY, MK-POLARITY, MK-SOURCE-TYPE, 
               MK-SUBJECTIVITY and MK-TENSE added to “event_mention” element, to 
               encode detailed meta-knowledge information associated with each event      
               mention.
        (3)”event_mention_mk_evidence” elements added as possible children of 
               “event_mention” elements, to link meta-knowledge related text spans
                with event mentions.  

-->

<!-- URI should be a unique identifier for the source file in question.
     SOURCE is a more general indicator of the news source from whence
       the source_file has been retrieved.  Likely values are CNN, APW,
       NPR, etc.
     TYPE indicates general class of signal (text, audio or image).
     VERSION attribute is used to perform optionaly versioning by
       matching against its value.
     AUTHOR attribute value should indicate the organization and/or
       person who produced the annotations contained in this file
       (e.g., "Ramshaw/BBN", "Ferro/MITRE", etc.).
     ENCODING indicates type-specific encoding standard being used
       in source file, such as UTF-8 for text data, wav for speech
       signals, etc.

-->     

<!ELEMENT source_file      (external_resource*,document+)>
<!ATTLIST source_file
                           URI      CDATA              #REQUIRED
                           SOURCE   CDATA              #IMPLIED
                           TYPE     (text|audio|image) #REQUIRED
                           VERSION  NMTOKEN            #IMPLIED
                           AUTHOR   CDATA              #IMPLIED
                           ENCODING CDATA              #IMPLIED
>

<!-- By giving document ID the XML type ID (see entity), an implicit
     promise is being made that there will be no duplicate document
     IDs in a file.  CDATA will be used for now because IDREFs should
     not be allowed to point to these DOCID ID's. --> 

<!ELEMENT document         (entity|relation|event|value|timex2|mk-cue|mk-source)* >
<!ATTLIST document
                           DOCID CDATA #REQUIRED
>

<!-- *********************************************************************

     The Entity Normalization and Disambiguation task defined for ACE
     requires that entities identified within a document must be
     associated with an element from some external resource.  The
     external_resource element declares the unique, universal URN that
     identifies this resource, and associates a locally unique NAME
     for the resource that may be used as an abbreviation within the
     APF file, and referenced from external_link elements (see further
     down in the DTD).

     The present types of elements that are currently expected to be
     linked to external resources are: entity.  In the future we may
     choose to link other types of elements (such as relation, event,
     value). to external resources.

     The text (#PCDATA) contained within the body of the external_resource

     ********************************************************************* -->

<!ELEMENT external_resource  (#PCDATA)>
<!ATTLIST external_resource
                   URN      CDATA             #REQUIRED
                   NAME     ID                #REQUIRED
>

<!-- ********************************************** -->
<!-- Entities, their attributes and their mentions. -->
<!-- ********************************************** -->

<!-- List of TYPE/SUBTYPE pairs (as of May 7, 2005)

TYPE="PER" SUBTYPE="Individual"
TYPE="PER" SUBTYPE="Group"
TYPE="PER" SUBTYPE="Indeterminate"

TYPE="ORG" SUBTYPE="Government"
TYPE="ORG" SUBTYPE="Non-Governmental"
TYPE="ORG" SUBTYPE="Commercial"
TYPE="ORG" SUBTYPE="Educational"
TYPE="ORG" SUBTYPE="Media"
TYPE="ORG" SUBTYPE="Religious"
TYPE="ORG" SUBTYPE="Sports"
TYPE="ORG" SUBTYPE="Medical-Science"
TYPE="ORG" SUBTYPE="Entertainment"

TYPE="LOC" SUBTYPE="Address"
TYPE="LOC" SUBTYPE="Boundary"
TYPE="LOC" SUBTYPE="Water-Body"
TYPE="LOC" SUBTYPE="Celestial"
TYPE="LOC" SUBTYPE="Land-Region-Natural"
TYPE="LOC" SUBTYPE="Region-General"
TYPE="LOC" SUBTYPE="Region-International"

TYPE="GPE" SUBTYPE="Continent"
TYPE="GPE" SUBTYPE="Nation"
TYPE="GPE" SUBTYPE="State-or-Province"
TYPE="GPE" SUBTYPE="County-or-District"
TYPE="GPE" SUBTYPE="Population-Center"
TYPE="GPE" SUBTYPE="GPE-Cluster"
TYPE="GPE" SUBTYPE="Special"

TYPE="FAC" SUBTYPE="Building-Grounds"
TYPE="FAC" SUBTYPE="Subarea-Facility"
TYPE="FAC" SUBTYPE="Path"
TYPE="FAC" SUBTYPE="Airport"
TYPE="FAC" SUBTYPE="Plant"

TYPE="VEH" SUBTYPE="Land"
TYPE="VEH" SUBTYPE="Air"
TYPE="VEH" SUBTYPE="Water"
TYPE="VEH" SUBTYPE="Subarea-Vehicle"
TYPE="VEH" SUBTYPE="Underspecified"

TYPE="WEA" SUBTYPE="Blunt"
TYPE="WEA" SUBTYPE="Exploding"
TYPE="WEA" SUBTYPE="Sharp"
TYPE="WEA" SUBTYPE="Chemical"
TYPE="WEA" SUBTYPE="Biological"
TYPE="WEA" SUBTYPE="Shooting"
TYPE="WEA" SUBTYPE="Projectile"
TYPE="WEA" SUBTYPE="Nuclear"
TYPE="WEA" SUBTYPE="Underspecified"
-->

<!ELEMENT entity         (entity_mention+,entity_attributes*,external_link*)>
<!ATTLIST entity
                         ID      ID                                #REQUIRED
                         TYPE    (PER|ORG|LOC|GPE|FAC|VEH|WEA)     #REQUIRED
                         SUBTYPE (Individual|Group|Indeterminate|
                           Government|Non-Governmental|
                           Commercial|Educational|
                           Media|Religious|Sports|
                           Medical-Science|Entertainment|
                           Address|Boundary|Water-Body|Celestial|
                           Land-Region-Natural|Region-General|
                           Region-International|Continent|Nation|
                           State-or-Province|County-or-District|
                           Population-Center|GPE-Cluster|Special|
                           Building-Grounds|Subarea-Facility|Path|
                           Airport|Plant|Land|Air|Water|Subarea-Vehicle|
                           Blunt|Exploding|Sharp|Chemical|
                           Biological|Shooting|Projectile|Nuclear|
                           Underspecified)                         #REQUIRED
                         CLASS   (NEG|SPC|GEN|USP)                 #REQUIRED
>


<!-- *********************************************************************

     The external_link element associates an individual entity
     identified at the document level with an element (or entry) in an
     external resource.  The RESOURCE attribute specifies the external
     resource being referenced (via its locally unique NAME), and the
     EID attribute specifies the ID of the element (or entry) in that
     resource to which this entity is being linked.

     ********************************************************************* -->

<!ELEMENT external_link    EMPTY>
<!ATTLIST external_link
                           RESOURCE           IDREF              #REQUIRED
                           EID                CDATA              #REQUIRED
>


<!-- entity_mention -->

<!ELEMENT entity_mention   (extent, head)>
<!ATTLIST entity_mention
                           ID        ID                          #REQUIRED
                           TYPE      (NAM|NOM|PRO)               #REQUIRED
                           LDCTYPE   (NAM|NOM|BAR|PRO|WHQ|
                                      HLS|PTV|APP|ARC|
                                      EAP|NAMPRE|NOMPRE)         #IMPLIED
                           ROLE      (PER|ORG|LOC|GPE)           #IMPLIED
                           METONYMY_MENTION (TRUE|FALSE)         #IMPLIED
                           LDCATR    (TRUE|FALSE)                #IMPLIED
>

<!-- There may be new attributes introduced in the future.  We incorporate
     additional attributes underneath the single entity_attributes tag.
     The name indexes directly into a portion of the signal, using one
     of the four indexing types. -->

<!ELEMENT entity_attributes (name*)>

<!ELEMENT name             (bblist|charspan|charseq|timespan)>
<!ATTLIST name             NAME  CDATA                            #IMPLIED
>

<!-- ****************************************************************** -->
<!-- VALUES, their attributes and mentions.                             -->
<!-- ****************************************************************** -->

<!-- List of TYPE/SUBTYPE pairs (as of May 7, 2005)

TYPE="Numeric" SUBTYPE="Money"
TYPE="Numeric" SUBTYPE="Percent"
TYPE="Contact-Info" SUBTYPE="Phone-Number"
TYPE="Contact-Info" SUBTYPE="E-Mail"
TYPE="Contact-Info" SUBTYPE="URL"

TYPE="Crime"
TYPE="Job-Title"
TYPE="Sentence"

-->

<!ELEMENT value          (value_mention)>
<!ATTLIST value
                         ID      ID                                  #REQUIRED
                         TYPE    (Numeric|Contact-Info|
                                  Crime|Job-Title|Sentence)          #REQUIRED
                         SUBTYPE (Money|Percent|Phone-Number|E-Mail|
                                  URL)                               #IMPLIED
>

<!ELEMENT value_mention  (extent)>
<!ATTLIST value_mention
                         ID      ID                                  #REQUIRED
>

<!-- timex2 -->

<!ELEMENT timex2        (timex2_mention)>
<!ATTLIST timex2
                         ID           ID                             #REQUIRED
                         VAL          CDATA                          #IMPLIED
                         MOD         (BEFORE|AFTER|ON_OR_BEFORE|
                                      ON_OR_AFTER|LESS_THAN|
                                      MORE_THAN|EQUAL_OR_LESS|
                                      EQUAL_OR_MORE|START|MID|
                                      END|APPROX)                    #IMPLIED
                         ANCHOR_VAL   CDATA                          #IMPLIED  
                         ANCHOR_DIR (WITHIN|STARTING|ENDING|
                                     AS_OF|BEFORE|AFTER)             #IMPLIED
                         SET          (YES)                          #IMPLIED
                         NON_SPECIFIC (YES)                          #IMPLIED
                         COMMENT      CDATA                          #IMPLIED
>

<!ELEMENT timex2_mention  (extent)>
<!ATTLIST timex2_mention
                         ID           ID                             #REQUIRED
>

<!-- ****************************************************************** -->
<!-- MK-CUE and attributes 		                    	        -->
<!-- ****************************************************************** -->

<!-- 

These elements encode information about meta-knowledge cue words and phrases (i.e., evidence for the assignment of particular meta-knowledge values) that have been identified during annotation. 

The TYPE attribute denotes the type of meta-knowledge evidence that the cue provides. 

Possible values are shown below. 

TYPE="Polarity-Cue"
TYPE="Subjectivity-Cue"
TYPE="Modality-Cue"
TYPE="Tense-Cue"
TYPE="Genericity-Cue"
TYPE="SourceType-Cue"


-->


<!ELEMENT mk-cue          (extent)>
<!ATTLIST mk-cue
                         ID      ID                                  #REQUIRED
                         TYPE    (Source|Polarity-Cue|Subjectivity-Cue|Modality-Cue|Tense-Cue|Genericity-Cue|SourceType-Cue)          #REQUIRED
>

<!-- ****************************************************************** -->
<!-- MK-SOURCE 				                    	        -->
<!-- ****************************************************************** -->

<!--

These elements correspond to phrases in the text that correspond to information sources of events, and which have been identified during the meta-knowledge annotation effort. Note, however, that certain sources correspond to entities that were annotated during the original ACE annotation effort (e.g., people or organisations providing information). The mk-source elements only encode sources that do not correspond to originally annotated entities. Often, these newly annotated sources are vague phrases, such as reports, that correspond to unnamed sources. 

--> 


<!ELEMENT mk-source          (extent)>
<!ATTLIST mk-source
                         ID      ID                                  #REQUIRED
>

<!-- The extent is the maximal subset of the signal permitted in
     judging correctness, and the head is the minimal subset. -->

<!ELEMENT extent           (bblist|charspan|charseq|timespan)>
<!ELEMENT head             (bblist|charspan|charseq|timespan)>
<!ELEMENT anchor           (bblist|charspan|charseq|timespan)>
<!ELEMENT ldc_scope        (bblist|charspan|charseq|timespan)>

<!ELEMENT charspan         (#PCDATA)>
<!ATTLIST charspan         START NMTOKEN  #REQUIRED
                           END   NMTOKEN  #REQUIRED
>

<!ELEMENT charseq          (#PCDATA)>
<!ATTLIST charseq          START NMTOKEN  #REQUIRED
                           END   NMTOKEN  #REQUIRED
>

<!ELEMENT timespan         (#PCDATA)>
<!ATTLIST timespan         START NMTOKEN  #REQUIRED
                           END   NMTOKEN  #REQUIRED
>

<!-- A list of bounding boxes is needed to describe wrapped words in
     an image. -->

<!ELEMENT bblist           (bbox)+>

<!-- The attributes of each bounding box are a page number,
     x (left) and y (lower) coordinates, and width and height.
     Note that x and y are points in space, not pixel numbers.
     (pixels have width and height and so x and y for a pixel
     would be the left most and lowest point in the pixel.) -->

<!ELEMENT bbox             (#PCDATA)>
<!ATTLIST bbox             PAGE   NMTOKEN  #REQUIRED
                           X      NMTOKEN  #REQUIRED
                           WIDTH  NMTOKEN  #REQUIRED
                           Y      NMTOKEN  #REQUIRED
                           HEIGHT NMTOKEN  #REQUIRED
>

<!-- A character SPAN (charspan) is a pair of indices that wraps
     the signal being annotated in text.   This means that the first
     index points to the imaginary gap *before* the first character
     and the second index points to the imaginary gap *after* the
     final character in the span.

     A character SEQUENCE (charseq) is a pair of indices pointing to
     the first and last character of the text being annotated.  This
     means that the first index points to the first character of the
     text being annotated (which is the same as pointing to the
     imaginary gap *before* the first character), and the second index
     points to the last character in the annotated text (the imaginary
     gap *before* the last character in the annotated text). -->


<!-- Perhaps these next elements are better suited to life as
     attributes of the previous elements.  This is  an artform, after
     all.  The other version would be *equivalent*, which is all
     anyone should ask. -->

<!-- ****************************************************************** -->
<!-- RELATIONS, their attributes and mentions.                          -->
<!-- ****************************************************************** -->

<!-- List of TYPE/SUBTYPE pairs (as of May 7, 2005)

TYPE="PHYS" SUBTYPE="Located"
TYPE="PHYS" SUBTYPE="Near"

TYPE="PART-WHOLE" SUBTYPE="Geographical"
TYPE="PART-WHOLE" SUBTYPE="Subsidiary"
TYPE="PART-WHOLE" SUBTYPE="Artifact"

TYPE="PER-SOC" SUBTYPE="Business"
TYPE="PER-SOC" SUBTYPE="Family"
TYPE="PER-SOC" SUBTYPE="Lasting-Personal"

TYPE="ORG-AFF" SUBTYPE="Employment"
TYPE="ORG-AFF" SUBTYPE="Ownership"
TYPE="ORG-AFF" SUBTYPE="Founder"
TYPE="ORG-AFF" SUBTYPE="Student-Alum"
TYPE="ORG-AFF" SUBTYPE="Sports-Affiliation"
TYPE="ORG-AFF" SUBTYPE="Investor-Shareholder"
TYPE="ORG-AFF" SUBTYPE="Membership"

TYPE="ART" SUBTYPE="User-Owner-Inventor-Manufacturer"

TYPE="GEN-AFF" SUBTYPE="Citizen-Resident-Religion-Ethnicity"
TYPE="GEN-AFF" SUBTYPE="Org-Location"

TYPE="METONYMY" (no SUBTYPE)

NOTE: METONYMY relations mark cross-type metonymies, and will not have
      relation mentions or values for MODALITY and TENSE.  For these
      reasons, we use "relation_mention*" instead of
      "relation_mention+", and "#IMPLIED" for MODALITY and TENSE. 

-->

<!ELEMENT relation           (relation_argument,
                              relation_argument+,
                              relation_mention*)>
<!ATTLIST relation           
                             ID       ID                        #REQUIRED
                             TYPE     (PHYS|PART-WHOLE|PER-SOC|ORG-AFF|
                                       ART|GEN-AFF|METONYMY)    #REQUIRED
                             SUBTYPE  (Located|Near|Geographical|
                                       Subsidiary|Artifact|Business|
                                       Family|Lasting-Personal|Employment|
                                       Ownership|Founder|Student-Alum|
                                       Sports-Affiliation|
                                       Investor-Shareholder|
                                       Membership|
                                       User-Owner-Inventor-Manufacturer|
                                       Citizen-Resident-Religion-Ethnicity|
                                       Org-Location)            #IMPLIED
                             MODALITY (Asserted|Other)          #IMPLIED
                             TENSE    (Past|Present|Future|
                                       Unspecified)             #IMPLIED
>

<!ELEMENT relation_argument  EMPTY>
<!ATTLIST relation_argument   
                             REFID     IDREF               #REQUIRED
                             ROLE      (Arg-1|Arg-2|
                                        Time-Within|
                                        Time-Starting|
                                        Time-Ending|
                                        Time-Before|
                                        Time-After|
                                        Time-Holds|
                                        Time-At-Beginning|
                                        Time-At-End)       #REQUIRED
>

<!ELEMENT relation_mention  (extent,
                             relation_mention_argument,
                             relation_mention_argument+)>
<!ATTLIST relation_mention   
                            ID                ID                #REQUIRED
                            LEXICALCONDITION  (Possessive|Preposition|
                                               PreMod|Formulaic|Verbal|
                                               Participial|Other|
                                               Coordination)    #IMPLIED
>

<!ELEMENT relation_mention_argument  (extent?)>
<!ATTLIST relation_mention_argument
                            REFID     IDREF                 #REQUIRED
                            ROLE      (Arg-1|Arg-2|
                                       Time-Within|
                                       Time-Starting|
                                       Time-Ending|
                                       Time-Before|
                                       Time-After|
                                       Time-Holds|
                                       Time-At-Beginning|
                                       Time-At-End)         #REQUIRED
>

<!-- ****************************************************************** -->
<!-- EVENTS, their attributes and mentions.                             -->
<!-- ****************************************************************** -->

<!-- List of TYPE/SUBTYPE pairs (as of May 7, 2005)

TYPE="Life" SUBTYPE="Be-Born"
TYPE="Life" SUBTYPE="Die"
TYPE="Life" SUBTYPE="Marry"
TYPE="Life" SUBTYPE="Divorce"
TYPE="Life" SUBTYPE="Injure"
TYPE="Transaction" SUBTYPE="Transfer-Ownership"
TYPE="Transaction" SUBTYPE="Transfer-Money"
TYPE="Movement" SUBTYPE="Transport"
TYPE="Business" SUBTYPE="Start-Org"
TYPE="Business" SUBTYPE="End-Org"
TYPE="Business" SUBTYPE="Declare-Bankruptcy"
TYPE="Business" SUBTYPE="Merge-Org"
TYPE="Conflict" SUBTYPE="Attack"
TYPE="Conflict" SUBTYPE="Demonstrate"
TYPE="Contact" SUBTYPE="Meet"
TYPE="Contact" SUBTYPE="Phone-Write"
TYPE="Personnel" SUBTYPE="Start-Position"
TYPE="Personnel" SUBTYPE="End-Position"
TYPE="Personnel" SUBTYPE="Nominate"
TYPE="Personnel" SUBTYPE="Elect"
TYPE="Justice" SUBTYPE="Arrest-Jail"
TYPE="Justice" SUBTYPE="Release-Parole"
TYPE="Justice" SUBTYPE="Charge-Indict"
TYPE="Justice" SUBTYPE="Trial-Hearing"
TYPE="Justice" SUBTYPE="Sue"
TYPE="Justice" SUBTYPE="Convict"
TYPE="Justice" SUBTYPE="Sentence"
TYPE="Justice" SUBTYPE="Fine"
TYPE="Justice" SUBTYPE="Execute"
TYPE="Justice" SUBTYPE="Extradite"
TYPE="Justice" SUBTYPE="Acquit"
TYPE="Justice" SUBTYPE="Pardon"
TYPE="Justice" SUBTYPE="Appeal"
-->

<!ELEMENT event             (event_argument*,
                             event_mention+)>
<!ATTLIST event 
                            ID       ID                         #REQUIRED
                            TYPE     (Life|Transaction|Movement|Business|
                                      Conflict|Contact|Personnel|
				      Justice)                  #REQUIRED
                            SUBTYPE  (Be-Born|Die|Marry|
                                      Divorce|Injure|Transfer-Ownership|
                                      Transfer-Money|Transport|
                                      Start-Org|End-Org|
                                      Declare-Bankruptcy|Merge-Org|Attack|
                                      Demonstrate|Meet|Phone-Write|
                                      Start-Position|End-Position|Nominate|
                                      Elect|Arrest-Jail|Release-Parole|
                                      Charge-Indict|Trial-Hearing|
                                      Sue|Convict|Sentence|
                                      Fine|Execute|Extradite|Acquit|
                                      Pardon|Appeal)             #REQUIRED
                            MODALITY (Asserted|Other)            #REQUIRED
                            POLARITY (Positive|Negative)         #REQUIRED
                            GENERICITY (Generic|Specific)        #REQUIRED
                            TENSE    (Past|Present|Future|
                                      Unspecified)               #REQUIRED
>

<!ELEMENT event_argument     EMPTY>
<!ATTLIST event_argument   
                             REFID  IDREF               #REQUIRED
                             ROLE  (Person|Place|
                                    Buyer|Seller|
                                    Beneficiary|Price|
                                    Artifact|Origin|
                                    Destination|Giver|
                                    Recipient|Money|
                                    Org|Agent|
                                    Victim|Instrument|
                                    Entity|Attacker|Target|
                                    Defendant|Adjudicator|
                                    Prosecutor|Plaintiff|
                                    Crime|Position|
                                    Sentence|
                                    Vehicle|
                                    Time-Within|
                                    Time-Starting|
                                    Time-Ending|
                                    Time-Before|
                                    Time-After|
                                    Time-Holds|
                                    Time-At-Beginning|
                                    Time-At-End)       #REQUIRED
>


<!-- ****************************************************************** -->
<!-- EVENT_MENTION and attributes 				        -->
<!-- ****************************************************************** -->

<!-- 

Attributes have been added in version 5.2.1 to encode detailed meta-knowleddge information at the level of the event mention. 


MK-GENERICITY - The meta-knowledge GENERICITY attribute associated with the event mention. Possible values are “Specific” and “Generic”.

MK-MODALITY - The meta-knowledge MODALITY attribute associated with the event mention. Possible values are “Asserted”, “Presupposed”, “Speculated” and “Other”.

MK-POLARITY - The meta-knowledge POLARITY attribute associated with the event mention. Possible values are “Positive” and “Negative”.

MK-SOURCE-TYPE - The meta-knowledge SOURCE-TYPE attribute associated with the event mention. Possible values are “Author”, “Involved” and “ThirdParty”.

MK-SUBJECTIVITY - The meta-knowledge GENERICITY attribute associated with the event mention. Possible values are “Positive”, “Negative”, “Multi-valued” and “Neutral”


--> 


<!ELEMENT event_mention     (extent, ldc_scope?, anchor,
                             event_mention_argument*,event_mention_mk_evidence*)>
<!ATTLIST event_mention
                            ID    ID                           #REQUIRED
                            LEVEL (SEN)                        #IMPLIED
                            MK-GENERICITY (Specific|Generic)   #REQUIRED
                            MK-MODALITY (Asserted|Presupposed|Speculated|Other)   #REQUIRED
                            MK-POLARITY (Positive|Negative)   #REQUIRED
                            MK-SOURCE-TYPE (Author|Involved|ThirdParty)   #REQUIRED
                            MK-SUBJECTIVITY (Neutral|Positive|Negative|Multi-valued)   #REQUIRED
                            MK-TENSE (Past|Present|Future|Unspecified)   #REQUIRED
                            
>

<!ELEMENT event_mention_argument    (extent?)>
<!ATTLIST event_mention_argument   
                                     REFID  IDREF              #REQUIRED
                                     ROLE  (Person|Place|
                                            Buyer|Seller|
                                            Beneficiary|Price|
                                            Artifact|Origin|
                                            Destination|Giver|
                                            Recipient|Money|
                                            Org|Agent|
                                            Victim|Instrument|
                                            Entity|Attacker|Target|
                                            Defendant|Adjudicator|
                                            Prosecutor|Plaintiff|
                                            Crime|Position|
                                            Sentence|
                                            Vehicle|
                                            Time-Within|
                                            Time-Starting|
                                            Time-Ending|
                                            Time-Before|
                                            Time-After|
                                            Time-Holds|
                                            Time-At-Beginning|
                                            Time-At-End)       #REQUIRED
>


<!-- ****************************************************************** -->
<!-- EVENT_MENTION_MK_EVIDENCE and attributes 				        -->
<!-- ****************************************************************** -->

<!--

event_mention_mk_evidence elements link meta-knowledge related text spans to the event mentions with which they are associated. 

Attributes are as follows: 

    EVIDENCE-TYPE - The type of meta-knowledge evidence that the underlying text span provides. This can either be:
        - A cue word/phrase, in which case one of the following values is used: MODALITY-CUE, GENERICITY-CUE, POLARITY-CUE, SUBJECTIVITY-CUE, TENSE-CUE, SOURCETYPE-CUE
        - A word/phrase denoting an information source, in which case one of the follwing values is used: SOURCE-NAMED if the phrase corresponds to a named source (e.g, a particular person, group or organisation); or SOURCE-UNNAMED, if the phrase is a a more vague reference to an information source, that is not specifically named.

NOTE: There can be more than one instance of a particular EVIDENCE-TYPE associated with a given event mention. For example, there may be multiple sources, or multiple words/phrases that provide evidence about the modality of an event.


    REF-ID - An ID that references an existing text span annotation (i.e., the value of this attribute matches the the value of the ID attribute of an existing element corresponding to a text span annotation). The referenced text span annotation may be one of the following:
        - An mk-cue annotation in the same file
        - An mk-source annotation in the same file
        - An entity-mention annotation in the associated original annotation file (i.e., the file with the extension .apf.xml within the timex2norm subdirectory of the corresponding corpus partition.). As mentioned above, information sources of events may correspond to entities that were previously identified as part of the original ACE 2005 annotation effort (people, organisation, etc). In this case, the REFID value will correspond to the annotation that identifies the mention of the relevant entity within the same sentence.

-->

<!ELEMENT event_mention_mk_evidence    (extent?)>
<!ATTLIST event_mention_mk_evidence   
                                    REFID  IDREF              #REQUIRED
                                     EVIDENCE-TYPE  (SOURCETYPE-CUE|
                                            GENERICITY-CUE|
                                            MODALITY-CUE|
                                            POLARITY-CUE|
                                            SUBJECTIVITY-CUE|
                                            TENSE-CUE|
                                            SOURCE-NAMED|
                                            SOURCE-UNNAMED)       #REQUIRED
>