['alien', 'leave', 'body', 'EmptyParameter', 'EmptyParameter']
["Synset('entrant.n.03')", 'become-109.1-1-1', "Synset('part.n.03')", 'EmptyParameter', 'EmptyParameter']
The aliens leave their hosts' bodies.
the Synset('entrant.n.03') leave <PRP> hosts' Synset('part.n.03').