Question: malcolm in the middle what's their last name
[{'answer': 'Wilkerson', 'provenance': [{'wikipedia_id': '299121', 'title': 'Malcolm in the Middle', 'start_paragraph_id': 9, 'start_character': 390, 'end_paragraph_id': 9, 'end_character': 399, 'bleu_score': 1.0, 'section': 'Section::::Premise.\n'}]}]