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Table 8 

Description of the mention classes for English documents.

Class
Description
PN_e NPs headed by a Proper Name that exactly match (excluding case and the determiner) at least one preceding mention in the same coreference chain. 
PN_p NPs headed by a Proper Name that partially match (i.e., head match or overlap, excluding case) at least one preceding mention in the same coreference chain. 
PN_n NPs headed by a Proper Name that do not match any preceding mention in the same coreference chain. 
CN_e Same definitions as in PN_e, PN_p, and PN_n, but referring to NPs headed by a Common Noun. 
CN_p 
CN_n  
P_1∪2 First- and second-person pronouns that corefer with a preceding mention. 
P_3g Gendered third-person pronouns that corefer with a preceding mention. 
P_3u Ungendered third-person pronouns that corefer with a preceding mention. 
Class
Description
PN_e NPs headed by a Proper Name that exactly match (excluding case and the determiner) at least one preceding mention in the same coreference chain. 
PN_p NPs headed by a Proper Name that partially match (i.e., head match or overlap, excluding case) at least one preceding mention in the same coreference chain. 
PN_n NPs headed by a Proper Name that do not match any preceding mention in the same coreference chain. 
CN_e Same definitions as in PN_e, PN_p, and PN_n, but referring to NPs headed by a Common Noun. 
CN_p 
CN_n  
P_1∪2 First- and second-person pronouns that corefer with a preceding mention. 
P_3g Gendered third-person pronouns that corefer with a preceding mention. 
P_3u Ungendered third-person pronouns that corefer with a preceding mention. 
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