Question: who painted a mustache on the mona lisa
[{'answer': 'Marcel Duchamp', 'provenance': [{'wikipedia_id': '10672395', 'title': 'L.H.O.O.Q.', 'start_paragraph_id': 1, 'start_character': 34, 'end_paragraph_id': 1, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10672395', 'title': 'L.H.O.O.Q.', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 698, 'bleu_score': 0.8658361201827911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2388748984378007191}, 'section': 'Section::::Abstract.'}]}]