['he', 'explain', 'nature', 'they', 'to']
['<PRP>', 'indicate-78', "Synset('attribute.n.02')", '<PRP>', 'to']
He explains to them the true nature of the entity.
<PRP> explains to <PRP> the Synset('truthful.a.01') Synset('attribute.n.02') of the Synset('entity.n.01').