Question: when did the flyers come into the nhl
[{'answer': '1967', 'provenance': [{'wikipedia_id': '66941', 'title': 'Philadelphia Flyers', 'start_paragraph_id': 1, 'start_character': 203, 'end_paragraph_id': 1, 'end_character': 207, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '66941', 'title': 'Philadelphia Flyers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 351, 'bleu_score': 0.879412772586156, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13487849462376566882}, 'section': 'Section::::Abstract.'}]}]