Question: who does robin williams play in happy feet 2
[{'answer': 'Ramon', 'provenance': [{'wikipedia_id': '25230514', 'title': 'Happy Feet Two', 'start_paragraph_id': 61, 'start_character': 15, 'end_paragraph_id': 61, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Soundtrack.\n'}]}, {'answer': 'Lovelace', 'provenance': [{'wikipedia_id': '25230514', 'title': 'Happy Feet Two', 'start_paragraph_id': 4, 'start_character': 419, 'end_paragraph_id': 4, 'end_character': 427, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]