PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, many variables such as the skin's melanin level, time of day, season, geographic latitude, cloud and smog cover, and sunscreen use can reduce the skin's ability to absorb and process the UV radiation into vitamin D. The simple variable of where you live has a significant impact on your possible exposure to the right amount of sunlight.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gerberlife.com