['they', 'occupy', 'EmptyParameter', 'alien', 'by']
['<PRP>', 'amuse-31.1', 'EmptyParameter', "Synset('entrant.n.03')", 'by']
Unknown to Sato, they are now occupied by the noncorporeal aliens.
Synset('unknown.a.01') to Sato, <PRP> are <DATE>1 occupied by the noncorporeal Synset('entrant.n.03').