PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This is when the unit is correct-side up, with the black switch on the top, as in the image above, which will be how you insert it in most outlets where the ground is at the bottom.
http://www.w3.org/ns/prov#wasQuotedFrom
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