Question: when did there's nothing holdin me back come out
[{'answer': 'April 20 , 2017', 'provenance': [{'wikipedia_id': '53813000', 'title': "There's Nothing Holdin' Me Back", 'start_paragraph_id': 1, 'start_character': 225, 'end_paragraph_id': 1, 'end_character': 240, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53813000', 'title': "There's Nothing Holdin' Me Back", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 388, 'bleu_score': 0.8602197748357281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4083457848629482454}, 'section': 'Section::::Abstract.'}]}]