So, for example, we ignore instances like the following with multiple wnsn values: <wf cmd=done pos=NN lemma=tooth wnsn=3;1 lexsn=1:05:02::;1:08:00::>tooth</wf> We also only evaluate on polysemous words (according to WordNet) having one sense in SemCor which is more frequent than any other, and for which both SemCor and our thesauruses have at least a minimal amount of data.
a word must occur three or more times in SemCor; it must also occur in ten or more grammatical relations in the parsed version of the BNC and have neighbors in the distributional thesaurus, or be present in Dekang Lin's thesaurus.