About: http://webisa.webdatacommons.org/173087341

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	It may be desirable, however, to provide such openings as part of the prefabricated sleeve so that no cutting or modification is necessary during cast construction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au