Then we randomly sampled sentences from the collected sentences as Neg so that |Neg| was about twice as large as |Pos|: 5,000,000 for English, 1,400,000 for Japanese, and 600,000 for Chinese.
the parent dependency subtrees are adjacent to the candidate phrases and represented by their surface form (f 8,1 ), base form (f 8,2 ), or POS (f 8,3 ).