PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Low sperm counts or poor sperm motility may be due to environmental toxins such as chemicals, radiation, drugs, heavy metal exposure, cigarette smoking, excessive alcohol use, street drug use and pollution.
http://www.w3.org/ns/prov#wasQuotedFrom
  • alive.com