PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, preparing polycrystalline ceramics having high transparency is a challenging task, as polycrystalline ceramics have a large number of scattering centers, such as pores, possible multiple second phases, and defects at grain boundaries.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com