Question: what year did the group switch come out
[{'answer': '1975', 'provenance': [{'wikipedia_id': '7469033', 'title': 'Switch (band)', 'start_paragraph_id': 4, 'start_character': 533, 'end_paragraph_id': 4, 'end_character': 537, 'bleu_score': 1.0, 'section': 'Section::::Biography.:Early years.\n'}]}]