['they', 'kill', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'murder-42.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
Given the dangerous nature of their work, it is possible one of them could be killed.
given the Synset('dangerous.a.01') Synset('attribute.n.02') of <PRP> work, <PRP> is Synset('possible.a.01') one of <PRP> could be killed.