def delete(resource_uri)
      connection.delete("resource") do |request|
        request.query[:uri] = resource_uri.to_s
        request.query.delete(:graph)
      end
    end
def delete(resource_uri)
      connection.delete("resource") do |request|
        request.query[:uri] = resource_uri.to_s
        request.query.delete(:graph)
      end
    end
Deletes a subject from the context.
 @param [String, #to_s] resource_uri URI of resource to delete.
 @return [True, False] Result of deleting.
 @todo Should this only delete triples from the given context?