Question: where does the bone ash for bone china come from
[{'answer': 'cattle bones', 'provenance': [{'wikipedia_id': '1863001', 'title': 'Bone china', 'start_paragraph_id': 9, 'start_character': 307, 'end_paragraph_id': 9, 'end_character': 319, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '1863001', 'title': 'Bone china', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 831, 'bleu_score': 0.9865312178338931, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17226197994811719515}, 'section': 'Section::::Production.\n'}]}]