: FedX:_a_federation_layer_for_distributed_query_processing_on_linked_open_datahttp://purl.org/SemSur/ Create a prefix for http://purl.org/SemSur/ Hit Enter to save Double click to create a prefix | : subjecthttp://purl.org/SemSur/ Create a prefix for http://purl.org/SemSur/ Hit Enter to save Double click to create a prefix | Querying Distributed RDF Data Sources | : SemSur/http://purl.org/ Create a prefix for http://purl.org/ Hit Enter to save Double click to create a prefix |