['he', 'know', 'anything', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2', "Synset('entity.n.01')", 'EmptyParameter', 'EmptyParameter']
He doesn't know anything about Humans, Andorians or Tellarites having threatened the Romulans.
<PRP> doesn't know Synset('entity.n.01') about Humans, <ORGANIZATION>5 or <MISC>1 having threatened the <ORGANIZATION>12.