['he', 'know', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['he', 'look', 'EmptyParameter', 'Neelix', 'for'] ['it', 'be', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'seem-109', 'EmptyParameter', '<PERSON>5', 'for'] ['<PRP>', 'seem-109', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
He does not know what it is and looks for Neelix.
<PRP> does not know what <PRP> is and looks for <PERSON>5.