['she', 'think', 'EmptyParameter', 'friend', 'EmptyParameter']
['<PRP>', 'focus-87.1-1', 'EmptyParameter', "Synset('causal_agent.n.01')", 'EmptyParameter']
She had thought Archer and Robinson were friends.
<PRP> had thought <PERSON>0 and Synset('robinson.n.04') were Synset('causal_agent.n.01').