['maco', 'leave', 'EmptyParameter', 'briefing', 'for']
['<OBJECT>0', 'leave-51.2-1', 'EmptyParameter', "Synset('speech_act.n.01')", 'for']
Excusing themselves, the MACOs leave for a briefing.
excusing themselves, the <OBJECT>0 leave for a Synset('speech_act.n.01').