Question: which is the capital city of sri lanka
[{'answer': 'Colombo', 'provenance': [{'wikipedia_id': '26750', 'title': 'Sri Lanka', 'start_paragraph_id': 1, 'start_character': 451, 'end_paragraph_id': 1, 'end_character': 458, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]