Question: where did the valley girl accent come from
[{'answer': 'California', 'provenance': [{'wikipedia_id': '105925', 'title': 'Valley girl', 'start_paragraph_id': 1, 'start_character': 101, 'end_paragraph_id': 1, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '105925', 'title': 'Valley girl', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 157, 'bleu_score': 0.749881028640899, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8193272453878691385}, 'section': 'Section::::Abstract.'}]}]