Question: how entrapped bubbles of gases are removed from steel
[{'answer': 'Deoxidization', 'provenance': [{'wikipedia_id': '12278528', 'title': 'Deoxidization', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12278528', 'title': 'Deoxidization', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 446, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1701688543092568287}, 'section': 'Section::::Abstract.'}]}]