['they', 'think', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['equipment', 'malfunction', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['they', 'detect', 'Wraith', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'focus-87.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ["Synset('artifact.n.01')", 'malfunction', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'see-30.1', '<PERSON>8', 'EmptyParameter', 'EmptyParameter']
They think that their equipment must be malfunctioning because they were unable to detect a frightened Wraith so close.
<PRP> think that <PRP> Synset('artifact.n.01') must be malfunctioning because <PRP> were Synset('unable.a.01') to detect a frightened <PERSON>8 so close.