PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When background properties see that the image is a gradient, they can supress the angle direction from expressing within the image, and instead rotate the entire background layer in such a way that the final result is that the rendered direction of the gradient within the background is the same as it would be in other properties.
http://www.w3.org/ns/prov#wasQuotedFrom
  • w3.org