Question: identify the center in the universe model copernicus
[{'answer': 'the Sun', 'provenance': [{'wikipedia_id': '8837050', 'title': 'Copernican heliocentrism', 'start_paragraph_id': 1, 'start_character': 147, 'end_paragraph_id': 1, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8837050', 'title': 'Copernican heliocentrism', 'start_paragraph_id': 1, 'start_character': 25, 'end_paragraph_id': 1, 'end_character': 583, 'bleu_score': 0.7916076560796491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8638403990445019722}, 'section': 'Section::::Abstract.'}]}]