Question: when does school leaving age change to 18
[{'answer': '2015', 'provenance': [{'wikipedia_id': '7583732', 'title': 'Raising of school leaving age in England and Wales', 'start_paragraph_id': 2, 'start_character': 949, 'end_paragraph_id': 2, 'end_character': 953, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]