PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Exposure to the cockroach allergen was measured through analysis of household dust (a hotbed of insect feces, saliva, and other residue), and air collection to look for polycyclic aromatic hydrocarbons (PAH), dangerous combustion products that contribute to air pollution from coal, tobacco, and oil.
http://www.w3.org/ns/prov#wasQuotedFrom
  • everydayhealth.com