Question: who played malcolm on malcolm in the middle
[{'answer': 'Frankie Muniz', 'provenance': [{'wikipedia_id': '299121', 'title': 'Malcolm in the Middle', 'start_paragraph_id': 2, 'start_character': 66, 'end_paragraph_id': 2, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]