['he', 'find', 'hard', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'declare-29.4-1-1-2', "Synset('unvoiced.a.01')", 'EmptyParameter', 'EmptyParameter']
He found the information hard to believe.
<PRP> found the Synset('system_of_measurement.n.01') Synset('unvoiced.a.01') to believe.