['they', 'discuss', 'fact', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'chit_chat-37.6', "Synset('message.n.02')", 'EmptyParameter', 'EmptyParameter']
In the Guardians' realm, they discuss the fact.
in the Guardians' realm, <PRP> discuss the Synset('message.n.02').