About: http://webisa.webdatacommons.org/189086565

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	True or false: Some types of stains react with concrete to produce color; other types achieve color without reacting with the concrete.
http://www.w3.org/ns/prov#wasQuotedFrom	durabilityanddesign.com