PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Stars differ in metalicity (metals" are any elements other than Hydrogen and Helium), and it is believed that many stars in the galaxy would lack the metalicity to host any planets at all; this view is just coming under question with a recent discovery of "super-earth type planets orbiting stars which were supposed to lack the metalicity to harbor any planets at all.
http://www.w3.org/ns/prov#wasQuotedFrom
  • berkeley.edu