Question: when does it get cold in north dakota
[{'answer': 'winter months', 'provenance': [{'wikipedia_id': '12872944', 'title': 'Climate of North Dakota', 'start_paragraph_id': 4, 'start_character': 239, 'end_paragraph_id': 4, 'end_character': 252, 'bleu_score': 1.0, 'section': 'Section::::General climatology.\n'}]}, {'provenance': [{'wikipedia_id': '12872944', 'title': 'Climate of North Dakota', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 537, 'bleu_score': 0.9144390830275091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 781735590738101230}, 'section': 'Section::::General climatology.\n'}]}]