Question: where does southern california get most of its water
[{'answer': 'The Colorado River', 'provenance': [{'wikipedia_id': '20732259', 'title': 'Water in California', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Sources of water.:Surface water.\n'}]}, {'provenance': [{'wikipedia_id': '20732259', 'title': 'Water in California', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 434, 'bleu_score': 0.897547341647235, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9031836937167704544}, 'section': 'Section::::Sources of water.:Surface water.\n'}]}]