Question: Karl Camillo Schmidt-Hellerau, was a German carpenter, furniture manufacturer and social reformer, and is notable as the founder of Hellerau, Germany, by which method of urban planning in which self-contained communities are surrounded by "greenbelts", containing proportionate areas of residences, industry, and agriculture?
{'answer': 'garden city movement', 'supporting_facts': [['Karl Schmidt-Hellerau', 1], ['Garden city movement', 0]]}