Thus, if there is more than one gfbf in a sentence, and the path between the two gfbfs in dependency parse contains only conj or xcomp, and there is no other noun between the latter gfbf and the conjunction, we assume the two agents are the same and the sentiments toward them should be the same.
for any i, j ∈ Entity, if i, j co-refer 7 , or they are the same agent as described above, Coref (i, j) = 1 (otherwise 0).