About: http://webisa.webdatacommons.org/301381440

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	A readout from the signal processing unit, computer monitor, or other output device connected to the signal processing components indicates if the chemical analyte is present, and if so, in what quantity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com