Question: how far is the pitcher's mound from home plate in mlb
[{'answer': '60 feet 6 inches', 'provenance': [{'wikipedia_id': '968099', 'title': 'Baseball field', 'start_paragraph_id': 31, 'start_character': 280, 'end_paragraph_id': 31, 'end_character': 296, 'bleu_score': 1.0, 'section': "Section::::Pitcher's mound.\n"}]}, {'provenance': [{'wikipedia_id': '968099', 'title': 'Baseball field', 'start_paragraph_id': 30, 'start_character': 0, 'end_paragraph_id': 30, 'end_character': 610, 'bleu_score': 0.837230839365371, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11971829696095318746}, 'section': "Section::::Pitcher's mound.\n"}]}]