About: http://webisa.webdatacommons.org/420817618

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	Because what I read was, they were talking about wet concrete, with the lime and other materials they have in concrete.
http://www.w3.org/ns/prov#wasQuotedFrom	osha.gov