About: http://webisa.webdatacommons.org/371372229

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	FIG. 7 is a block diagram illustrating operation of the reflectance testing assembly 74 which may be used to distinguish elements, such as nitrogen, potassium, phosphorous and zinc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca