Question: who was the egyptian president who was assassinated in 1981
[{'answer': 'Anwar Sadat', 'provenance': [{'wikipedia_id': '30836429', 'title': 'Assassination of Anwar Sadat', 'start_paragraph_id': 0, 'start_character': 17, 'end_paragraph_id': 0, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30836429', 'title': 'Assassination of Anwar Sadat', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 591, 'bleu_score': 0.980097014099621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5800952773454691779}, 'section': 'Section::::Abstract.'}]}]