Question: the rule of the three rightly guided caliphs was called a
[{'answer': 'Rashidun', 'provenance': [{'wikipedia_id': '437375', 'title': 'Rashidun', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '437375', 'title': 'Rashidun', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 599, 'bleu_score': 0.86417699765271, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8864609139337750806}, 'section': 'Section::::Abstract.'}]}]