0: syntactic form - definite/indefinite/pronoun etc - for first mention
2: value for syntactic number - singular/plural/don't-know - for first mention
5: root of the subtree in dependency parse: subject, preposition, etc. for first mention
7: speaker of first mention: either follower or giver
8: dialog act for first mention: e.g. saying "OK" = align
9: syntactic form for second mention
11: value for syntactic number for second mention
14: root of the subtree in dependency parse for second mention
16: speaker for second mention
17: dialog act for second mention
18: bigram of features "0" and "9"
20: bigram of features "2" and "11"
23: bigram of features "5" and "14"
25: bigram of features "7" and "16"
26: bigram of features "8" and "17"
27 - 55: binary features, comparing the two mentions, such as string equal, equal in form, equal in part of speech tag, etc, are both pronouns etc
56: part of speech tag feature for first mention's head
57: part of speech tag feature for second mention's head
58: bigram of features "56" and "57"
59: how far apart the mentions are in a sentence
60: how far apart the mentions are in turns taken to speak
61: are the mentions in the same turn?
64: are the mentions 1 apart in a sentence?
65: are the mentions 1 apart in turns?