Question: silicon valley is the nickname of which are in northern california usa
[{'answer': 'the Santa Clara Valley', 'provenance': [{'wikipedia_id': '26976', 'title': 'Silicon Valley', 'start_paragraph_id': 3, 'start_character': 65, 'end_paragraph_id': 3, 'end_character': 87, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26976', 'title': 'Silicon Valley', 'start_paragraph_id': 1, 'start_character': 51, 'end_paragraph_id': 1, 'end_character': 718, 'bleu_score': 0.601560279713335, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10740986142958847162}, 'section': 'Section::::Abstract.'}]}]