PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The C1 carbonaceous chondrites that have been been found on Earth contain the building blocks" of life.... amino acids and other organic compounds, as well as clay minerals and water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • arstechnica.com