Question: where is the oldest bristlecone pine tree located
[{'answer': 'White Mountains of California', 'provenance': [{'wikipedia_id': '215931', 'title': 'Bristlecone pine', 'start_paragraph_id': 15, 'start_character': 661, 'end_paragraph_id': 15, 'end_character': 690, 'bleu_score': 1.0, 'section': 'Section::::Description.\n'}]}, {'provenance': [{'wikipedia_id': '215931', 'title': 'Bristlecone pine', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 436, 'bleu_score': 0.679445664588037, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 87507914754308065}, 'section': 'Section::::Oldest living organisms.\n'}]}]