union-7.rq

Jena推理机

PREFIX : <http://example/>

#Exclude ?g as it is location dependent.
SELECT ?x ?y ?v ?w
{
    { ?x :p ?v }
    UNION 
    {
       GRAPH ?g { ?y :q ?w}
       FILTER (regex(str(?g), "data-1.ttl$"))
    }
}