Question: when does the south west wind blow in nigeria
[{'answer': 'April', 'provenance': [{'wikipedia_id': '21385', 'title': 'Geography of Nigeria', 'start_paragraph_id': 12, 'start_character': 115, 'end_paragraph_id': 12, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::Climate types found in Nigeria.\n'}]}, {'provenance': [{'wikipedia_id': '21385', 'title': 'Geography of Nigeria', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 910, 'bleu_score': 0.8493519606009191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9997848767513473277}, 'section': 'Section::::Climate types found in Nigeria.\n'}]}]