['they', 'find', 'positron', 'EmptyParameter', 'EmptyParameter'] ['positron', 'indicate', 'impact', 'EmptyParameter', 'EmptyParameter'] ['positron', 'cause', 'EmptyParameter', 'something', 'by']
['<PRP>', 'discover-84', "Synset('elementary_particle.n.01')", 'EmptyParameter', 'EmptyParameter'] ["Synset('elementary_particle.n.01')", 'indicate-78', "Synset('phenomenon.n.01')", 'EmptyParameter', 'EmptyParameter'] ["Synset('elementary_particle.n.01')", 'act-114', 'EmptyParameter', "Synset('entity.n.01')", 'by']
They found some displaced positrons that could indicate a dark matter impact but could have been caused by something else.
<PRP> found some displaced Synset('elementary_particle.n.01') that could indicate a Synset('dark.a.02') Synset('cognition.n.01') Synset('phenomenon.n.01') but could have been caused by Synset('entity.n.01') else.