PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since accurate long-term tracking of multiple objects in general scenes is still an unsolved problem, these methods are prone to error due to confusion, caused, for example, by occlusions and normal variations in ambient illumination and local changes due to shadows cast by static structures such as buildings, tress, poles, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com