Question: when did crater lake became a national park
[{'answer': 'May 22 , 1902', 'provenance': [{'wikipedia_id': '176555', 'title': 'Crater Lake National Park', 'start_paragraph_id': 37, 'start_character': 119, 'end_paragraph_id': 37, 'end_character': 134, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]