Question: when did the seattle pilots move to milwaukee
[{'answer': 'April 1 , 1970', 'provenance': [{'wikipedia_id': '274330', 'title': 'Seattle Pilots', 'start_paragraph_id': 1, 'start_character': 232, 'end_paragraph_id': 1, 'end_character': 246, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '274330', 'title': 'Seattle Pilots', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 281, 'bleu_score': 0.6539181082675231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16014061033965741978}, 'section': 'Section::::Abstract.'}]}]