Question: who is the president of yemen right now
[{'answer': 'Abdrabbuh Mansur Hadi', 'provenance': [{'wikipedia_id': '444090', 'title': 'President of Yemen', 'start_paragraph_id': 2, 'start_character': 109, 'end_paragraph_id': 2, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '444090', 'title': 'President of Yemen', 'start_paragraph_id': 2, 'start_character': 79, 'end_paragraph_id': 2, 'end_character': 825, 'bleu_score': 0.759009020437433, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14595015021058368598}, 'section': 'Section::::Abstract.'}]}]