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?
Sentence (from "Negative planning"): It distinguishes itself from other theories as it is an innovation and a possibly practical way of solving urban planning problems in Chinese cities.
Relevant evidence: No