About: http://webisa.webdatacommons.org/314522881

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In some municipalities, such as San Francisco, a homeowner can install a small, simple greywater system (single-fixture and/or clothes-washer systems) without a permit.
http://www.w3.org/ns/prov#wasQuotedFrom	residentialarchitect.com