Question: when does the southwest wind blow in nigeria
[{'answer': 'the rainy season', 'provenance': [{'wikipedia_id': '21385', 'title': 'Geography of Nigeria', 'start_paragraph_id': 16, 'start_character': 115, 'end_paragraph_id': 16, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::Seasons.\n'}]}, {'provenance': [{'wikipedia_id': '21385', 'title': 'Geography of Nigeria', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 567, 'bleu_score': 0.9541060922758601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8291219825540764783}, 'section': 'Section::::Seasons.\n'}]}]