About: http://webisa.webdatacommons.org/77525841

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	U.S. Pat. No. 1,533,444 shows a floor slab for mounting a bathroom fixture such as a toilet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com