PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition, because sanitizing agents such as chlorine are less efficient at high pH levels, improper pH levels can lead to unsanitary conditions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es