['they', 'sit', 'EmptyParameter', 'hall', 'in']
['<PRP>', 'assuming_position-50', 'EmptyParameter', '<LOCATION>1', 'in']
They sit together in the mess hall, observing the aliens mixing with the crew.
<PRP> sit together in the <LOCATION>1 hall, observing the Synset('entrant.n.03') mixing with the Synset('unit.n.03').