Question: what mountain was used as mount doom in lord of the rings
[{'answer': 'Mount Ngauruhoe', 'provenance': [{'wikipedia_id': '23871069', 'title': 'Mount Doom', 'start_paragraph_id': 12, 'start_character': 130, 'end_paragraph_id': 12, 'end_character': 145, 'bleu_score': 1.0, 'section': 'Section::::Adaptations.\n'}]}, {'answer': 'Mount Ruapehu', 'provenance': [{'wikipedia_id': '23871069', 'title': 'Mount Doom', 'start_paragraph_id': 12, 'start_character': 150, 'end_paragraph_id': 12, 'end_character': 163, 'bleu_score': 1.0, 'section': 'Section::::Adaptations.\n'}]}, {'provenance': [{'wikipedia_id': '23871069', 'title': 'Mount Doom', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 437, 'bleu_score': 0.9430699958503841, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13486313672570095869}, 'section': 'Section::::Adaptations.\n'}]}]