Question: who has been elected next president of united nations 2018
[{'answer': 'María Fernanda Espinosa', 'provenance': [{'wikipedia_id': '780080', 'title': 'President of the United Nations General Assembly', 'start_paragraph_id': 2, 'start_character': 145, 'end_paragraph_id': 2, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]