Question: who is going on tour with taylor swift 2018
[{'answer': 'Charli XCX', 'provenance': [{'wikipedia_id': '55785385', 'title': "Taylor Swift's Reputation Stadium Tour", 'start_paragraph_id': 1, 'start_character': 498, 'end_paragraph_id': 1, 'end_character': 508, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Camila Cabello', 'provenance': [{'wikipedia_id': '55785385', 'title': "Taylor Swift's Reputation Stadium Tour", 'start_paragraph_id': 1, 'start_character': 510, 'end_paragraph_id': 1, 'end_character': 524, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '55785385', 'title': "Taylor Swift's Reputation Stadium Tour", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 323, 'bleu_score': 0.667467346529882, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13247933997201027067}, 'section': 'Section::::Abstract.'}]}]