Question: who pitched the first no-hitter in orioles history
[{'answer': 'Earl Hamilton', 'provenance': [{'wikipedia_id': '29777200', 'title': 'List of Baltimore Orioles no-hitters', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '29777200', 'title': 'List of Baltimore Orioles no-hitters', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1457, 'bleu_score': 0.930677791016804, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17469257498562344613}, 'section': 'Section::::Abstract.'}]}]