Question: when did fiesta texas open in san antonio
[{'answer': 'March 14 , 1992', 'provenance': [{'wikipedia_id': '949469', 'title': 'Six Flags Fiesta Texas', 'start_paragraph_id': 1, 'start_character': 211, 'end_paragraph_id': 1, 'end_character': 228, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]