['he', 'see', 'sun', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2-1-1', "Synset('actinic_radiation.n.01')", 'EmptyParameter', 'EmptyParameter']
He didn't see the Andorian sun until he was fifteen years old.
<PRP> didn't see the <ORGANIZATION>2 Synset('actinic_radiation.n.01') until <PRP> was <DURATION>1.