['they', 'know', 'nothing', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2', "Synset('measure.n.02')", 'EmptyParameter', 'EmptyParameter']
They in actuality know nothing about.
<PRP> in Synset('state.n.02') know Synset('measure.n.02') about.