Question: who is playing in super bowl halftime 2018
[{'answer': 'Justin Timberlake', 'provenance': [{'wikipedia_id': '45280353', 'title': 'Super Bowl LII halftime show', 'start_paragraph_id': 1, 'start_character': 200, 'end_paragraph_id': 1, 'end_character': 217, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'The Tennessee Kids', 'provenance': [{'wikipedia_id': '45280353', 'title': 'Super Bowl LII halftime show', 'start_paragraph_id': 13, 'start_character': 171, 'end_paragraph_id': 13, 'end_character': 189, 'bleu_score': 1.0, 'section': 'Section::::Development.\n'}]}, {'answer': 'University of Minnesota Marching Band', 'provenance': [{'wikipedia_id': '45280353', 'title': 'Super Bowl LII halftime show', 'start_paragraph_id': 3, 'start_character': 812, 'end_paragraph_id': 3, 'end_character': 849, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.\n'}]}]