PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Researchers used the scanning transmission x-ray and Fourier transform infrared microscopes at the ALS. The x-ray microscope ruled out tens of interstellar dust candidates because they contained aluminum, not found in space or other substances and possibly knocked off the spacecraft and embedded in the aerogel.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science20.com