Question: who hired joe chill to kill batman's parents
[{'answer': 'Lew Moxon', 'provenance': [{'wikipedia_id': '12384640', 'title': 'Lew Moxon', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12384640', 'title': 'Lew Moxon', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 251, 'bleu_score': 0.955027111100031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11786663008536551126}, 'section': 'Section::::Abstract.'}]}]