PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The tool to be mounted on the tool holder 2 is not limited to the grinding wheel 13 mentioned hereinbefore but may be selected from among the variety of tools such as a milling cutter, drill, and so on which are usually incorporated in a machining center so that various machining operations can be performed according to the selected tools.
http://www.w3.org/ns/prov#wasQuotedFrom
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