About: http://webisa.webdatacommons.org/77798755

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	For example, in situations where material properties, such as viscosity, change over time, information stored at the information storing mechanism may relate to the age of the material or its viscosity at a given point in time.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca