PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • EED MECHANISM BACKGROUND OF THE INVENTION Various devices have been proposed or built which are utilized to propel balls, such as tennis balls, automatically.
http://www.w3.org/ns/prov#wasQuotedFrom
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