['she', 'do', 'what', 'EmptyParameter', 'EmptyParameter'] ['she', 'do', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'act-114', 'what', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'act-114', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
She did what she did.
<PRP> did what <PRP> did.