Question: when is the last time a hurricane hit the west coast
[{'answer': '1997', 'provenance': [{'wikipedia_id': '2811275', 'title': 'List of California hurricanes', 'start_paragraph_id': 2, 'start_character': 488, 'end_paragraph_id': 2, 'end_character': 492, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2811275', 'title': 'List of California hurricanes', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 537, 'bleu_score': 0.92584198972227, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5270722562719913014}, 'section': 'Section::::Abstract.'}]}]