['they', 'begin', 'summon', 'alien', 'EmptyParameter']
['<PRP>', 'begin-55.1-1-1', 'urge-58.1-1', "Synset('entrant.n.03')", 'EmptyParameter']
And so they began summoning the aliens intentionally to use their bodies in this manner.
and so <PRP> began summoning the Synset('entrant.n.03') intentionally to use <PRP> Synset('chamber.n.01') in this Synset('category.n.02').