Question: when does the nile river flood every year
[{'answer': 'August', 'provenance': [{'wikipedia_id': '5839243', 'title': 'Flooding of the Nile', 'start_paragraph_id': 1, 'start_character': 168, 'end_paragraph_id': 1, 'end_character': 174, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5839243', 'title': 'Flooding of the Nile', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 469, 'bleu_score': 0.8024097312174261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18054102409465300037}, 'section': 'Section::::Abstract.'}]}]