Question: how old do you have to be to buy alcohol in ontario
[{'answer': '19', 'provenance': [{'wikipedia_id': '1015583', 'title': 'Legal drinking age', 'start_paragraph_id': 7, 'start_character': 541, 'end_paragraph_id': 7, 'end_character': 543, 'bleu_score': 1.0, 'section': 'Section::::Americas.\n'}]}]