About: http://webisa.webdatacommons.org/431634585

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	More importantly, slides rules continued to be used by the engineers and other professionals that knew how to use them, but they remained very complicated to learn and operate accurately.
http://www.w3.org/ns/prov#wasQuotedFrom	skmurphy.com