: A_semantic_web_middleware_for_virtual_data_integration_on_the_webhttp://purl.org/semsur/ Create a prefix for http://purl.org/semsur/ Hit Enter to save Double click to create a prefix | : publisherhttp://swrc.ontoware.org/ontology# Create a prefix for http://swrc.ontoware.org/ontology# Hit Enter to save Double click to create a prefix | : The_Semantic_Web:_Research_and_Applicationshttp://purl.org/SemSur/ Create a prefix for http://purl.org/SemSur/ Hit Enter to save Double click to create a prefix | : SemSur/http://purl.org/ Create a prefix for http://purl.org/ Hit Enter to save Double click to create a prefix |