['they', 'adapt', 'EmptyParameter', 'environment', 'to']
['<PRP>', 'adjust-26.9', 'EmptyParameter', "Synset('region.n.03')", 'to']
Humans were abducted from America's rocky desert regions because they were best adapted to the new planet's identical environment.
Synset('primate.n.02') were abducted from America's Synset('rough.a.09') Synset('community.n.06') Synset('measure.n.02') because <PRP> were Synset('best.a.01') adapted to the Synset('new.a.06') planet's Synset('identical.a.03') Synset('region.n.03').