SPARQL modePREFIX a: <http://www.w3.org/2000/10/annotation-ns#>PREFIX dc: <http://purl.org/dc/elements/1.1/>PREFIX foaf: <http://xmlns.com/foaf/0.1/>PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#># Comment! SELECT ?given ?family WHERE { { ?annot a:annotates <http://www.w3.org/TR/rdf-sparql-query/> . ?annot dc:creator ?c . OPTIONAL {?c foaf:givenName ?given ; foaf:familyName ?family } } UNION { ?c !foaf:knows/foaf:knows? ?thing. ?thing rdfs } MINUS { ?thing rdfs:label "剛柔流"@jp } FILTER isBlank(?c) }MIME types defined: application/sparql-query.