['prisoner', 'seem', 'puzzle', 'find', 'EmptyParameter']
["Synset('person.n.01')", 'seem-109-1-1-1', 'marvel-31.3', 'find', 'EmptyParameter']
The prisoners seem puzzled to find their captain alive.
the Synset('person.n.01') seem puzzled to find <PRP> Synset('mariner.n.01') Synset('animated.a.01').