['he', 'tell', 'engineer', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'transfer_mesg-37.1.1-1-1', "Synset('causal_agent.n.01')", 'EmptyParameter', 'EmptyParameter']
He tells the engineer.
<PRP> tells the Synset('causal_agent.n.01').