Question: which process is responsible for forming the islands of japan
[{'answer': 'subduction', 'provenance': [{'wikipedia_id': '1629264', 'title': 'Geology of Japan', 'start_paragraph_id': 1, 'start_character': 184, 'end_paragraph_id': 1, 'end_character': 194, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1629264', 'title': 'Geology of Japan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 365, 'bleu_score': 0.9262685672663881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 777417495291175711}, 'section': 'Section::::Abstract.'}]}]