Question: when did the carolina panthers become a franchise
[{'answer': '1993', 'provenance': [{'wikipedia_id': '9998248', 'title': 'History of the Carolina Panthers', 'start_paragraph_id': 1, 'start_character': 54, 'end_paragraph_id': 1, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9998248', 'title': 'History of the Carolina Panthers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 495, 'bleu_score': 0.9748377259086851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3556041069421485087}, 'section': 'Section::::Abstract.'}]}]