['it', 'pose', 'threat', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'transfer_mesg-37.1.1', "Synset('informing.n.02')", 'EmptyParameter', 'EmptyParameter']
To purify antimatter waste so that it poses no threat.
to purify Synset('physical_entity.n.01') Synset('geographical_area.n.01') so that <PRP> poses no Synset('informing.n.02').