PREFIX rdf: PREFIX foaf: PREFIX myfoaf: CONSTRUCT { myfoaf:jose foaf:depiction . myfoaf:jose foaf:schoolHomepage . ?s ?p ?o.} WHERE { ?s ?p ?o. myfoaf:jose foaf:nick "Little Jo". FILTER ( ! (?s = myfoaf:kendall && ?p = foaf:knows && ?o = myfoaf:edd ) && ! ( ?s = myfoaf:julia && ?p = foaf:mbox && ?o = ) && ! ( ?s = myfoaf:julia && ?p = rdf:type && ?o = foaf:Person)) }