Question: when did the reds last won a world series
[{'answer': '1990', 'provenance': [{'wikipedia_id': '6671', 'title': 'Cincinnati Reds', 'start_paragraph_id': 35, 'start_character': 215, 'end_paragraph_id': 35, 'end_character': 219, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.:The Big Red Machine (1970–1976).\n'}]}]