Question: where are the majority of identified hydrogeothermal sites in the united states located
[{'answer': 'California', 'provenance': [{'wikipedia_id': '11166187', 'title': 'Geothermal energy in the United States', 'start_paragraph_id': 1, 'start_character': 108, 'end_paragraph_id': 1, 'end_character': 118, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]