['they', 'find', 'drone', 'EmptyParameter', 'EmptyParameter'] ['they', 'use', 'node', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'discover-84', '<VESSEL>2', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'consume-66', "Synset('machine.n.01')", 'EmptyParameter', 'EmptyParameter']
They must find a living drone and use its node.
<PRP> must find a Synset('group.n.01') <VESSEL>2 and use <PRP> Synset('machine.n.01').