['len', 'apologize', 'say', 'EmptyParameter', 'EmptyParameter'] ['she', 'know', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['len', 'apologize', 'say-37.7-1-1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'comprehend-87.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
Ah'len apologizes, saying she didn't know.
Ah'len apologizes, saying <PRP> didn't know.