['crew', 'knock', 'EmptyParameter', 'gas', 'by'] ['they', 'retrieve', 'EmptyParameter', 'surface', 'from'] ['tpol', 'examine', 'it', 'EmptyParameter', 'EmptyParameter']
["Synset('unit.n.03')", 'bump-18.4-1', 'EmptyParameter', "Synset('condition.n.01')", 'by'] ['<PRP>', 'obtain-13.5.2', 'EmptyParameter', "Synset('whole.n.02')", 'from'] ['<PERSON>5', 'assessment-34.1', '<PRP>', 'EmptyParameter', 'EmptyParameter']
The crew was knocked out by gas emitted by an artifact they had retrieved from the surface of a moon when Tpol examined it.
the Synset('unit.n.03') was knocked out by Synset('condition.n.01') emitted by an Synset('object.n.01') <PRP> had retrieved from the Synset('whole.n.02') of a Synset('moon.n.05') when <PERSON>5 examined <PRP>.