['they', 'discover', 'evidence', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'discover-84', "Synset('message.n.02')", 'EmptyParameter', 'EmptyParameter']
They discover evidence of an intruder, including a Varro scanning device.
<PRP> discover Synset('message.n.02') of an intruder, including a <PERSON>1 Synset('copying.n.01') Synset('communication.n.02').