PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The ion source shown in FIG. 3 is similar to the prior art ion source shown in FIG. 2 except for the following points.
http://www.w3.org/ns/prov#wasQuotedFrom
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