Question: when was the last time eminem went on tour
[{'answer': '2014', 'provenance': [{'wikipedia_id': '4429395', 'title': 'Eminem', 'start_paragraph_id': 3, 'start_character': 346, 'end_paragraph_id': 3, 'end_character': 350, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]