Question: who was the pope that started the crusades
[{'answer': 'Pope Urban II', 'provenance': [{'wikipedia_id': '4412145', 'title': 'Crusades', 'start_paragraph_id': 2, 'start_character': 9, 'end_paragraph_id': 2, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4412145', 'title': 'Crusades', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1353, 'bleu_score': 0.8733012126452131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17888298425554262928}, 'section': 'Section::::Abstract.'}]}]