def enrich_value(value)
      return value unless value.is_a? ActiveTriples::Resource
      deduplicate_resource(value)
      value
    end
def enrich_value(value)
      return value unless value.is_a? ActiveTriples::Resource
      deduplicate_resource(value)
      value
    end
@param value [Object]

 @return [Object] the original value altered to remove nodes with the same
   `providedLabel`, if any