['she', 'return', 'EmptyParameter', 'ship', 'to']
['<PRP>', 'escape-51.1-1', 'EmptyParameter', "Synset('craft.n.02')", 'to']
She should return back to the ship for treatment.
<PRP> should return back to the Synset('craft.n.02') for Synset('social_control.n.01').