['Joe', 'listen', 'EmptyParameter', 'he', 'to'] ['physician', 'listen', 'EmptyParameter', 'he', 'to']
['joe', 'peer-30.3', 'EmptyParameter', '<PRP>', 'to'] ["Synset('health_professional.n.01')", 'peer-30.3', 'EmptyParameter', '<PRP>', 'to']
Joe and the physician listen to him.
joe and the Synset('health_professional.n.01') listen to <PRP>.