['doctor', 'learn', 'system', 'EmptyParameter', 'EmptyParameter']
['<PERSON>0', 'discover-84-1-1', "Synset('body.n.01')", 'EmptyParameter', 'EmptyParameter']
The Doctor is learning the system well.
<PERSON>0 is learning <PERSON>0 Synset('body.n.01') well.