['he', 'respond', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'say-37.7-1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
It was a Mother Goose story, to which he responds.
<PRP> was a Synset('leaven.n.01') Synset('bird.n.02') story, to which <PRP> responds.