How could I do this using only a single query? Shoud I do this with
SPARQL? If not, do You know another ontology query language to do
this?
SPARQL can't do arbitrary path expressions.
Look at:
http://psparql.inrialpes.fr/
for an extension that can. You might also want to look at the path
expressions offered by WQL:
http://wilbur-rdf.sourceforge.net/2004/05/11-comparison.shtml
or at running your queries on an inferencing store, if your is-a
relationships are transitive.
Another question: what do the CONSTRUCT work?
Sorry, you'll have to rephrase that.
