Question: in sg iron graphite will be in the form of
[{'answer': 'cast iron', 'provenance': [{'wikipedia_id': '1349885', 'title': 'Ductile iron', 'start_paragraph_id': 1, 'start_character': 36, 'end_paragraph_id': 1, 'end_character': 45, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1349885', 'title': 'Ductile iron', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 373, 'bleu_score': 0.9425437476131631, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10039542790269445017}, 'section': 'Section::::Abstract.'}]}]