['doctor', 'choose', 'operate', 'EmptyParameter', 'EmptyParameter'] ['doctor', 'operate', 'EmptyParameter', 'Kim', 'on']
['<PERSON>0', 'get-13.5.1', 'other_cos-45.4', 'EmptyParameter', 'EmptyParameter'] ['<PERSON>0', 'other_cos-45.4', 'EmptyParameter', '<PERSON>1', 'on']
The Doctor chooses to operate on Kim.
<PERSON>0 chooses to operate on <PERSON>1.