PREFIX rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX :        <http://example.com/>

SELECT ?x
{
  { SELECT ?x {  ?x rdfs:subClassOf* :T } }
}


## SELECT DISTINCT ?c ?n ?SumV ?p
## WHERE{
##    ?n rdf:type :N .
##    ?n :hasRes ?c.
##    ?p1 rdfs:subClassOf* :PI.
##    ?p rdf:type ?p1 .
##    ?c :hasP ?p .
##    { SELECT ( SUM(?v) as ?SumV) ?n ?c
##      WHERE {
##         ?n rdf:type :N.
##         ?n :hasRes ?c.
##         ?c :hasP ?p .
##         ?c :hasD ?d. 
##         ?d rdf:type :D .
##         ?d :DV ?v.
##            }
##      GROUP BY (?n)
##      HAVING (SUM(?v) > 30)
##     }
##     { SELECT ?n ?c
##       WHERE {
##           ?n rdf:type :N.
##           ?n :hasRes ?c.
##           ?p1 rdfs:subClassOf* :PI.
##           ?p rdf:type ?p1 .
##           ?c :hasP ?p .
##           }
##     }
## }