Question: what did the chinese use oracle bones for
[{'answer': 'pyromancy', 'provenance': [{'wikipedia_id': '399463', 'title': 'Oracle bone', 'start_paragraph_id': 1, 'start_character': 81, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '399463', 'title': 'Oracle bone', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 296, 'bleu_score': 0.8756330159843351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13421462244723933667}, 'section': 'Section::::Abstract.'}]}]