['they', 'feel', 'EmptyParameter', 'prisoner', 'like']
['<PRP>', 'marvel-31.3', 'EmptyParameter', "Synset('person.n.01')", 'like']
They feel like prisoners on board, willing to take violent action to escape.
<PRP> feel like Synset('person.n.01') on board, Synset('willing.a.01') to take Synset('violent.a.01') Synset('device.n.01') to escape.