PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • An indirect lighting system, comprising:a light source; a housing connected to and supporting said light source, said housing including a first side and a second side, said second side being defined such that from said light source cannot be directly incident on said second side; a separate reflective surface adjacent said light source opposite said housing for reflecting a first portion of light;
http://www.w3.org/ns/prov#wasQuotedFrom
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