Question: how long does a cow give milk after calving
[{'answer': '10 months', 'provenance': [{'wikipedia_id': '969613', 'title': 'Dairy cattle', 'start_paragraph_id': 19, 'start_character': 198, 'end_paragraph_id': 19, 'end_character': 207, 'bleu_score': 1.0, 'section': 'Section::::Milk production levels.\n'}]}, {'provenance': [{'wikipedia_id': '969613', 'title': 'Dairy cattle', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 525, 'bleu_score': 0.8650493143166791, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6838597386391300206}, 'section': 'Section::::Milk production levels.\n'}]}]