Question: when was on the revolutions of the heavenly spheres published
[{'answer': '1543', 'provenance': [{'wikipedia_id': '1028515', 'title': 'De revolutionibus orbium coelestium', 'start_paragraph_id': 1, 'start_character': 197, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1028515', 'title': 'De revolutionibus orbium coelestium', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 422, 'bleu_score': 0.8105468430353161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5570565682414140757}, 'section': 'Section::::Abstract.'}]}]