About: http://webisa.webdatacommons.org/186262647

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	Even for an existing system, measuring values is an inexact science; not only does the measurement need to be specified, but also the the range of measurement and the measurement process need to be defined.
http://www.w3.org/ns/prov#wasQuotedFrom	c2.com