About: http://webisa.webdatacommons.org/219039495

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	While the first two modes can be measured, in principle, sequentially by two different devices, the third mode is a unique one and can be realized only with a device that combines the 1 and 2 modalities.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca