Question: when did oscar de la hoya start boxing
[{'answer': '1992', 'provenance': [{'wikipedia_id': '95310', 'title': 'Oscar De La Hoya', 'start_paragraph_id': 1, 'start_character': 215, 'end_paragraph_id': 1, 'end_character': 219, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]