Question: in the underwater oxyfuel gas cutting process what keeps the water away from the preheating flames
[{'answer': 'Oxy - fuel welding', 'provenance': [{'wikipedia_id': '12414930', 'title': 'Oxy-fuel welding and cutting', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12414930', 'title': 'Oxy-fuel welding and cutting', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 651, 'bleu_score': 0.669941671979944, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12148716316887571164}, 'section': 'Section::::Abstract.'}]}]