Question: when was the last grizzly bear killed in california
[{'answer': 'August 1922', 'provenance': [{'wikipedia_id': '432210', 'title': 'California grizzly bear', 'start_paragraph_id': 11, 'start_character': 398, 'end_paragraph_id': 11, 'end_character': 409, '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': 0.9663255544678141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8423918976980272298}, 'section': 'Section::::History and extinction.\n'}]}]