Question: after capturing constantinople in 1453 what did the ottomans rename it
[{'answer': 'Kostantiniyye', 'provenance': [{'wikipedia_id': '102674', 'title': 'Fall of Constantinople', 'start_paragraph_id': 79, 'start_character': 61, 'end_paragraph_id': 79, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Cultural references.:Renaming of the city.\n'}]}, {'answer': 'Istanbul', 'provenance': [{'wikipedia_id': '102674', 'title': 'Fall of Constantinople', 'start_paragraph_id': 79, 'start_character': 305, 'end_paragraph_id': 79, 'end_character': 313, 'bleu_score': 1.0, 'section': 'Section::::Cultural references.:Renaming of the city.\n'}]}, {'provenance': [{'wikipedia_id': '102674', 'title': 'Fall of Constantinople', 'start_paragraph_id': 79, 'start_character': 0, 'end_paragraph_id': 79, 'end_character': 571, 'bleu_score': 0.9009607481831341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18031683492513480303}, 'section': 'Section::::Cultural references.:Renaming of the city.\n'}]}]