['he', 'imagine', 'serve', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'characterize-29.2-1-1', 'masquerade-29.6', 'EmptyParameter', 'EmptyParameter']
He couldn't imagine serving on any other vessel.
<PRP> couldn't imagine serving on any Synset('other.a.01') Synset('instrumentality.n.03').