About: http://webisa.webdatacommons.org/47983942

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	Without the various date and time arithmetic functions discussed in this tutorial, building such an application is a time-consuming process; with them, it is a snap.
http://www.w3.org/ns/prov#wasQuotedFrom	weberdev.com