About: http://webisa.webdatacommons.org/80833729

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	However, the number of such openings may be varied depending on the number and types of computations to be performed by the .slide rule, as will hereinafter be explained in more detail.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com