Question: which arc is a line of volcanoes on an oceanic plate
[{'answer': 'continental volcanic arcs', 'provenance': [{'wikipedia_id': '1102339', 'title': 'Volcanic arc', 'start_paragraph_id': 16, 'start_character': 272, 'end_paragraph_id': 16, 'end_character': 297, 'bleu_score': 1.0, 'section': 'Section::::Examples.\n'}]}, {'provenance': [{'wikipedia_id': '1102339', 'title': 'Volcanic arc', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 604, 'bleu_score': 0.979484453366057, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 655133304708323466}, 'section': 'Section::::Examples.\n'}]}]