Question: who played the baby in the baby and the battleship
[{'answer': 'Martyn Garrett', 'provenance': [{'wikipedia_id': '27733896', 'title': 'The Baby and the Battleship', 'start_paragraph_id': 28, 'start_character': 12, 'end_paragraph_id': 28, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]