['he', 'replace', 'canister', 'EmptyParameter', 'EmptyParameter'] ['he', 'leave', 'room', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'substitute-13.6.2', "Synset('weaponry.n.01')", 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'leave-51.2-1', "Synset('social_group.n.01')", 'EmptyParameter', 'EmptyParameter']
Dismissing it quickly, he replaces the canister, and leaves the room.
dismissing <PRP> quickly, <PRP> replaces the canister, and leaves the Synset('social_group.n.01').