['he', 'know', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['he', 'eat', 'they', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'eat-39.1-1', '<PRP>', 'EmptyParameter', 'EmptyParameter']
He doesn't know what's worse, hunting them or eating them.
<PRP> doesn't know what's worse, Synset('act.n.02') <PRP> or eating <PRP>.