Question: when was the last time mexico won the little league world series
[{'answer': '1997', 'provenance': [{'wikipedia_id': '674587', 'title': 'Little League World Series', 'start_paragraph_id': 82, 'start_character': 17, 'end_paragraph_id': 82, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Championship tally.:Championship notes.\n'}]}]