Question: the walking dead season 8 episode 1 is how long
[{'answer': '16 episodes', 'provenance': [{'wikipedia_id': '49550011', 'title': 'The Walking Dead (season 8)', 'start_paragraph_id': 1, 'start_character': 181, 'end_paragraph_id': 1, 'end_character': 192, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '49550011', 'title': 'The Walking Dead (season 8)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 614, 'bleu_score': 0.632953026289075, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9275257379855620551}, 'section': 'Section::::Abstract.'}]}]