Question: when did the verizon guy switched to sprint
[{'answer': '2016', 'provenance': [{'wikipedia_id': '7402993', 'title': 'Paul Marcarelli', 'start_paragraph_id': 12, 'start_character': 6, 'end_paragraph_id': 12, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Advertising career.\n'}]}, {'provenance': [{'wikipedia_id': '7402993', 'title': 'Paul Marcarelli', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 153, 'bleu_score': 0.743180178103746, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18132475120150124965}, 'section': 'Section::::Advertising career.\n'}]}]