Question: when did memphis state become university of memphis
[{'answer': '1994', 'provenance': [{'wikipedia_id': '23916969', 'title': 'Memphis Tigers football', 'start_paragraph_id': 29, 'start_character': 35, 'end_paragraph_id': 29, 'end_character': 39, 'bleu_score': 1.0, 'section': 'Section::::History.:Charlie Bailey era (1986–1988).\n'}]}, {'provenance': [{'wikipedia_id': '23916969', 'title': 'Memphis Tigers football', 'start_paragraph_id': 36, 'start_character': 0, 'end_paragraph_id': 36, 'end_character': 880, 'bleu_score': 0.722982158015528, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15981269153497436890}, 'section': 'Section::::History.:Chuck Stobart era (1989–1994).\n'}]}]