Question: what channel is alaska the last front tier on
[{'answer': 'Discovery Channel', 'provenance': [{'wikipedia_id': '41326962', 'title': 'Alaska: The Last Frontier', 'start_paragraph_id': 1, 'start_character': 80, 'end_paragraph_id': 1, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '41326962', 'title': 'Alaska: The Last Frontier', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 524, 'bleu_score': 0.946458428441119, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17502560676247968224}, 'section': 'Section::::Abstract.'}]}]