Question: who is the president of south africa 2018
[{'answer': 'Cyril Ramaphosa', 'provenance': [{'wikipedia_id': '321700', 'title': 'President of South Africa', 'start_paragraph_id': 2, 'start_character': 417, 'end_paragraph_id': 2, 'end_character': 432, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]