['they', 'discuss', 'that', 'EmptyParameter', 'EmptyParameter'] ['they', 'owe', 'explanation', 'they', 'EmptyParameter']
['<PRP>', 'chit_chat-37.6', 'that', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'future_having-13.3-1', "Synset('higher_cognitive_process.n.01')", '<PRP>', 'EmptyParameter']
They have already discussed that and owe them no explanations.
<PRP> have already discussed that and owe <PRP> no Synset('higher_cognitive_process.n.01').