Question: when did spain change their currency to the euro
[{'answer': '2002', 'provenance': [{'wikipedia_id': '158806', 'title': 'Spanish peseta', 'start_paragraph_id': 1, 'start_character': 59, 'end_paragraph_id': 1, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '158806', 'title': 'Spanish peseta', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 140, 'bleu_score': 0.9214109120166031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5585997022077360656}, 'section': 'Section::::History.\n'}]}]