Question: when did civilization begin in the fertile crescent
[{'answer': '9,000 BCE', 'provenance': [{'wikipedia_id': '39715', 'title': 'Fertile Crescent', 'start_paragraph_id': 11, 'start_character': 547, 'end_paragraph_id': 11, 'end_character': 556, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '39715', 'title': 'Fertile Crescent', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 621, 'bleu_score': 0.856046822797476, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13793437306591976672}, 'section': 'Section::::History.\n'}]}]