['he', 'take', 'injection', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'steal-10.5', "Synset('treatment.n.01')", 'EmptyParameter', 'EmptyParameter']
He has been taking regular injections.
<PRP> has been taking Synset('unconstipated.a.01') Synset('treatment.n.01').