Question: when did the state of texas initiate the top 10 percent plan
[{'answer': 'in 1997', 'provenance': [{'wikipedia_id': '1220251', 'title': 'Texas House Bill 588', 'start_paragraph_id': 1, 'start_character': 88, 'end_paragraph_id': 1, 'end_character': 95, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1220251', 'title': 'Texas House Bill 588', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 95, 'bleu_score': 0.8970773746801091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17165495285165271071}, 'section': 'Section::::Abstract.'}]}]