Question: who did kansas city lose to last year in the playoffs
[{'answer': 'Pittsburgh Steelers', 'provenance': [{'wikipedia_id': '48416604', 'title': '2016 Kansas City Chiefs season', 'start_paragraph_id': 1, 'start_character': 412, 'end_paragraph_id': 1, 'end_character': 431, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48416604', 'title': '2016 Kansas City Chiefs season', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 455, 'bleu_score': 0.9751504244977051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6209846400836787067}, 'section': 'Section::::Abstract.'}]}]