Question: when did grizzly bears become extinct in california
[{'answer': 'in 1924', 'provenance': [{'wikipedia_id': '432210', 'title': 'California grizzly bear', 'start_paragraph_id': 11, 'start_character': 481, 'end_paragraph_id': 11, 'end_character': 488, 'bleu_score': 1.0, 'section': 'Section::::History and extinction.\n'}]}, {'provenance': [{'wikipedia_id': '432210', 'title': 'California grizzly bear', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 639, 'bleu_score': 0.9810405040225261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14543519444729004880}, 'section': 'Section::::History and extinction.\n'}]}]