['he', 'threaten', 'open', 'EmptyParameter', 'EmptyParameter'] ['he', 'open', 'fire', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'amuse-31.1', 'establish-55.5', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'other_cos-45.4', "Synset('substance.n.01')", 'EmptyParameter', 'EmptyParameter']
He threatens to open fire.
<PRP> threatens to open Synset('substance.n.01').