PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Associate membership dues are assessed based on annual sales of products, materials, and services, including installation and equipment, to the refractories industry.
http://www.w3.org/ns/prov#wasQuotedFrom
  • refractoriesinstitute.org