['he', 'sleep', 'EmptyParameter', 'attack', 'since']
['<PRP>', 'snooze-40.4', 'EmptyParameter', "Synset('process.n.06')", 'since']
He has not slept since the Xindi attack in nearly two days.
<PRP> has not slept since the <PERSON>3 Synset('process.n.06') in <DURATION>0.