['he', 'know', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['she', 'defend', 'herself', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'comprehend-87.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'defend-72.3', '<PRP>', 'EmptyParameter', 'EmptyParameter']
He does not know how well she defends herself.
<PRP> does not know how well <PRP> defends <PRP>.