Question: who plays francis on malcom in the middle
[{'answer': 'Christopher Kennedy Masterson', 'provenance': [{'wikipedia_id': '947516', 'title': 'Christopher Masterson', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '947516', 'title': 'Christopher Masterson', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 268, 'bleu_score': 0.5678079454297731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12854764373604803679}, 'section': 'Section::::Abstract.'}]}]