PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although polished and plated jewelry products are usually tainted with lead, cadmium and other heavy metals to some extent, some developed countries still import the products from China as they set safety standards for the products to protect their customers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thanhniennews.com