Question: what is the name of the senate president in nigeria
[{'answer': 'Bukola Saraki .', 'provenance': [{'wikipedia_id': '11041350', 'title': 'President of the Senate of Nigeria', 'start_paragraph_id': 6, 'start_character': 12, 'end_paragraph_id': 6, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Trivia.\n'}]}, {'provenance': [{'wikipedia_id': '11041350', 'title': 'President of the Senate of Nigeria', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 272, 'bleu_score': 0.8806615362338781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7710741974996115297}, 'section': 'Section::::Abstract.'}]}]