Question: when it was first established the city of constantinople
[{'answer': '11 May 330', 'provenance': [{'wikipedia_id': '5646', 'title': 'Constantinople', 'start_paragraph_id': 2, 'start_character': 146, 'end_paragraph_id': 2, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]