Question: what is the constitutional capital city of bolivia called
[{'answer': 'Sucre', 'provenance': [{'wikipedia_id': '3462', 'title': 'Bolivia', 'start_paragraph_id': 1, 'start_character': 152, 'end_paragraph_id': 1, 'end_character': 157, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]