Question: when did sri lanka win the world cup
[{'answer': '1996', 'provenance': [{'wikipedia_id': '397246', 'title': 'Sri Lanka national cricket team', 'start_paragraph_id': 2, 'start_character': 152, 'end_paragraph_id': 2, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]