['doctor', 'do', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['doctor', 'ask', 'he', 'EmptyParameter', 'EmptyParameter'] ['what', 'happen', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
['<PERSON>2', 'act-114', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PERSON>2', 'urge-58.1', '<PRP>', 'EmptyParameter', 'EmptyParameter'] ['what', 'occur-48.3', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
The Doctor does so and agitatedly asks him what has happened.
<PERSON>2 does so and agitatedly asks <PRP> what has happened.