['she', 'refuse', 'talk', 'EmptyParameter', 'EmptyParameter'] ['she', 'talk', 'EmptyParameter', 'it', 'about']
['<PRP>', 'reject-77.2', 'talk-37.5', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'talk-37.5', 'EmptyParameter', '<PRP>', 'about']
She refuses to talk about it.
<PRP> refuses to talk about <PRP>.