['he', 'look', 'EmptyParameter', 'it', 'at']
['<PRP>', 'seem-109', 'EmptyParameter', '<PRP>', 'at']
He'll look at it first thing in the morning.
He'll look at <PRP> <ORDINAL>0 Synset('entity.n.01') in the Synset('clock_time.n.01').