Question: who pitched the first no-hitter in twins history
[{'answer': 'Walter Johnson', 'provenance': [{'wikipedia_id': '29692921', 'title': 'List of Minnesota Twins no-hitters', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '29692921', 'title': 'List of Minnesota Twins no-hitters', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1454, 'bleu_score': 0.94255024886281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10953035284207626751}, 'section': 'Section::::Abstract.'}]}]