Question: What commune, ecovillage, and spiritual community was founded by Oberto Airaudi?
Sentence (from "Federation of Damanhur"): The Federation of Damanhur, often called simply Damanhur, is a commune, ecovillage, and spiritual community situated in the Piedmont region of northern Italy about 30 miles (50 km) north of the city of Turin.
Relevant evidence: Yes