Question: when did memphis state became university of memphis
[{'answer': 'July 1 , 1994', 'provenance': [{'wikipedia_id': '628169', 'title': 'University of Memphis', 'start_paragraph_id': 35, 'start_character': 415, 'end_paragraph_id': 35, 'end_character': 428, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '628169', 'title': 'University of Memphis', 'start_paragraph_id': 35, 'start_character': 0, 'end_paragraph_id': 35, 'end_character': 506, 'bleu_score': 0.977897140678983, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17492930885519535680}, 'section': 'Section::::History.\n'}]}]