['he', 'confirm', 'statement', 'EmptyParameter', 'EmptyParameter'] ['they', 'learn', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'indicate-78', "Synset('document.n.01')", 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'learn-14-1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
He confirms Archer's statement -- they've learned.
<PRP> confirms Archer's Synset('document.n.01') -- they've learned.