['they', 'freeze', 'they', 'EmptyParameter', 'EmptyParameter'] ['they', 'examine', 'they', 'condition', 'under']
['<PRP>', 'other_cos-45.4', '<PRP>', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'assessment-34.1', '<PRP>', "Synset('activity.n.01')", 'under']
Just to be on the safe side, they freeze them again and examine them under more controlled conditions.
just to be on the Synset('safe.a.01') side, <PRP> freeze <PRP> again and examine <PRP> under Synset('more.a.02') Synset('controlled.a.01') Synset('activity.n.01').