PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In other words, a reference character M is a virtual upper limited line for drawing the sub-plating line, a reference character N is a virtual lower limited line for drawing the sub-plating line, and a reference character ??? is the main plating line formed between the PCB units.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au