Question: what is the area code for los angeles ca
[{'answer': '213', 'provenance': [{'wikipedia_id': '932869', 'title': 'List of California area codes', 'start_paragraph_id': 3, 'start_character': 12, 'end_paragraph_id': 3, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '323', 'provenance': [{'wikipedia_id': '932869', 'title': 'List of California area codes', 'start_paragraph_id': 3, 'start_character': 177, 'end_paragraph_id': 3, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '818', 'provenance': [{'wikipedia_id': '932869', 'title': 'List of California area codes', 'start_paragraph_id': 17, 'start_character': 122, 'end_paragraph_id': 17, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]