Question: what type of primary electoral system does california have
[{'answer': 'nonpartisan blanket primary', 'provenance': [{'wikipedia_id': '5580468', 'title': 'Elections in California', 'start_paragraph_id': 19, 'start_character': 53, 'end_paragraph_id': 19, 'end_character': 80, 'bleu_score': 1.0, 'section': 'Section::::Procedure.\n'}]}, {'provenance': [{'wikipedia_id': '5580468', 'title': 'Elections in California', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 125, 'bleu_score': 0.8852140475440831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9400394632783275846}, 'section': 'Section::::Procedure.\n'}]}]