Question: when does blue planet 2 come out in usa
[{'answer': 'January 20 , 2018', 'provenance': [{'wikipedia_id': '53265861', 'title': 'Blue Planet II', 'start_paragraph_id': 3, 'start_character': 56, 'end_paragraph_id': 3, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53265861', 'title': 'Blue Planet II', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 229, 'bleu_score': 0.8592377270804451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12664064837562152684}, 'section': 'Section::::Abstract.'}]}]