hi, i'm really having troubles figuring out how to get my option transitive right for the following :
- i have a couple of skos:concepts in a skos:narrower hierarchy. - i have an inference graph that apparently works. - i have read the doc (16.2.12) but can't get my sparql query to work properly (i get all sorts of results but not the one i want). i'd like to list ?p and ?o of the topmost skos:concept of that hierarchy and expect all sub-elements (the whole skos:narrower - chain) to show up in the result with skos:narrowerTransitive as ?p. example : 1. import (file also in attachment) <rdf:Description rdf:about="http://www.turnguard.com/Music";> <rdf:type rdf:resource="http://www.w3.org/2004/02/skos/core#Concept"/> <skos:prefLabel xml:lang="en">Music</skos:prefLabel> <skos:narrower rdf:resource="http://www.turnguard.com/Pop"; /> </rdf:Description> <rdf:Description rdf:about="http://www.turnguard.com/Pop";> <rdf:type rdf:resource="http://www.w3.org/2004/02/skos/core#Concept"/> <skos:prefLabel xml:lang="en">POP</skos:prefLabel> <skos:narrower rdf:resource="http://www.turnguard.com/TechnoPop"; /> </rdf:Description> <rdf:Description rdf:about="http://www.turnguard.com/TechnoPop";> <rdf:type rdf:resource="http://www.w3.org/2004/02/skos/core#Concept"/> <skos:prefLabel xml:lang="en">TECHNOPOP</skos:prefLabel> <skos:narrower rdf:resource="http://www.turnguard.com/ElectroPop"; /> </rdf:Description> <rdf:Description rdf:about="http://www.turnguard.com/ElectroPop";> <rdf:type rdf:resource="http://www.w3.org/2004/02/skos/core#Concept"/> <skos:prefLabel xml:lang="en">ELECTROPOP</skos:prefLabel> </rdf:Description> 2. SPARQL : define input:inference "skosruleset" SELECT * FROM <urn:mygraph> WHERE { ?s ?p ?o } includes statements that about skos:semanticRelation (is a superprop of skos:narrower) rdfs:labels (because of skos:prefLabel) and skos:narrowerTransitive (is a superprop of skos:narrower) - the proplem is that there's allways only ONE skos:narrowerTransitive for each narrower (they go parallel) which is not surprising due to the absence of any option transitive - but just to make sure basic inferencing works. now how can i transform my sparql-query to get the following result (short forms of the uris): Music skos:prefLabel "Music" Music rdf:type skos:Concept Music skos:narrower Pop Music skos:narrowerTransitive Pop Music skos:narrowerTransitive TechnoPop Music skos:narrowerTransitive ElectroPop any help or pointer to the right direction really appreciated wkr www.turnguard.com -- punkt. netServices ______________________________ Jürgen Jakobitsch Codeography Lerchenfelder Gürtel 43 Top 5/2 A - 1160 Wien Tel.: 01 / 897 41 22 - 29 Fax: 01 / 897 41 22 - 22 netServices http://www.punkt.at
test10.rdf
Description: application/rdf
