['they', 'become', 'aware', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'become-109.1-1-1', "Synset('mindful.a.01')", 'EmptyParameter', 'EmptyParameter']
They become aware of armed security officers running towards the Klingons' position.
<PRP> become Synset('mindful.a.01') of Synset('armed.a.01') Synset('division.n.04') Synset('skilled_worker.n.01') running towards the Klingons' Synset('attribute.n.02').