About: http://webisa.webdatacommons.org/238209203

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	We also figured that each house may have different types of stains and dirt on their concrete, so this was the only way to keep the testing accurate.
http://www.w3.org/ns/prov#wasQuotedFrom	howtocleanconcrete.com