PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Thanks to recent advances in stem cell research, we are also getting closer to replacing cells in the retina lost to diseases such as retinitis pigmentosa and age-related macular degeneration.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blindness.org