['Tucker', 'want', 'switch', 'EmptyParameter', 'EmptyParameter'] ['Tucker', 'switch', 'EmptyParameter', 'injection', 'to']
['<PERSON>2', 'want-32.1-1-1', 'convert-26.6.2', 'EmptyParameter', 'EmptyParameter'] ['<PERSON>2', 'convert-26.6.2', 'EmptyParameter', "Synset('treatment.n.01')", 'to']
Tucker wants to switch back to injections.
<PERSON>2 wants to switch back to Synset('treatment.n.01').