Question: when did the atlanta falcons become a team
[{'answer': 'June 30 , 1965', 'provenance': [{'wikipedia_id': '2103', 'title': 'Atlanta Falcons', 'start_paragraph_id': 10, 'start_character': 39, 'end_paragraph_id': 10, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.:Professional football comes to Atlanta.\n'}]}]