PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Perhaps this has something to do with wood being a good temperature insulator and hence does not become cold enough to cause snow to stick to it.On the other hand, hard materials such as plastic and metal performed the best.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com