PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • chemicals, foreign organic compounds, bacteria, heavy metals such as lead and parasite cysts giardia and cryptosporidium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • advancedwaterfiltration.com.au