['they', 'get', 'isolate', 'EmptyParameter', 'EmptyParameter'] ['they', 'isolate', 'signature', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'birth-28.2', 'classify-29.10', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'classify-29.10', "Synset('paper.n.01')", 'EmptyParameter', 'EmptyParameter']
They have gotten close enough to isolate the weapon's signature.
<PRP> have gotten close enough to isolate the weapon's Synset('paper.n.01').