Question: who is the hardest throwing pitcher of all time
[{'answer': 'Stephen Louis Dalkowski Jr.', 'provenance': [{'wikipedia_id': '1377339', 'title': 'Steve Dalkowski', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1377339', 'title': 'Steve Dalkowski', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 782, 'bleu_score': 0.8373343034772741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10499669752899623539}, 'section': 'Section::::Abstract.'}]}]