Also, there are separate similarity lists for each of nouns, verbs, and modifiers; we only used the lists matching the seed word's part of speech.
given a seed set s and a complete target set g, it is easy to evaluate our system; we say "Yes" to anything in g, "No" to everything else, and see how many of the candidate words are in g. building a complete gold-standard g is in practice prohibitively difficult; instead, we are only capable of saying whether or not a word belongs to g when presented with that word.