['he', 'say', 'EmptyParameter', 'word', 'EmptyParameter']
['<PRP>', 'pronounce-29.3.1', 'EmptyParameter', "Synset('unit_of_measurement.n.01')", 'EmptyParameter']
He's said two words exactly.
He's said <NUMBER>5 Synset('unit_of_measurement.n.01') exactly.