['Archer', 'realize', 'risk', 'EmptyParameter', 'EmptyParameter']
['<PERSON>4', 'comprehend-87.2', "Synset('measure.n.02')", 'EmptyParameter', 'EmptyParameter']
Order to learn whether Archer realizes the risk of contamination.
Synset('activity.n.01') to learn whether <PERSON>4 realizes the Synset('measure.n.02') of Synset('change_of_state.n.01').