['it', 'become', 'clear', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'become-109.1-1-1', "Synset('clear.a.04')", 'EmptyParameter', 'EmptyParameter']
It becomes clear to The Doctor/Seven.
<PRP> becomes Synset('clear.a.04') to <PERSON>1 doctor/seven.