Question: what kind of milk is pecorino romano cheese made from
[{'answer': "sheep 's milk", 'provenance': [{'wikipedia_id': '25087', 'title': 'Pecorino Romano', 'start_paragraph_id': 8, 'start_character': 511, 'end_paragraph_id': 8, 'end_character': 524, 'bleu_score': 1.0, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '25087', 'title': 'Pecorino Romano', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 169, 'bleu_score': 0.5513215917476101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6006363927231065573}, 'section': 'Section::::Abstract.'}]}]