['tpol', 'discover', 'evidence', 'EmptyParameter', 'EmptyParameter'] ['Tucker', 'discover', 'evidence', 'EmptyParameter', 'EmptyParameter']
['<PERSON>2', 'discover-84', "Synset('message.n.02')", 'EmptyParameter', 'EmptyParameter'] ['<PERSON>0', 'discover-84', "Synset('message.n.02')", 'EmptyParameter', 'EmptyParameter']
Tpol and Tucker discover evidence.
<PERSON>2 and <PERSON>0 discover Synset('message.n.02').