SPARQL query doesn't deliver desired results - sparql

Question

I've used the following code to list the band members of Punk Rock bands:
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX dbr: <http://dbpedia.org/resource/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema>
SELECT distinct ?bandname ?bandmembername where {
?band
foaf:name ?bandname;
dbo:genre dbr:Punk_Rock.
?bandmember
dbo:bandMember ?bandmember;
rdfs:label ?bandmembername.
}
I would need the band members of any Punk_Rock band.

Answer 1

There is no syntax error.
There are 2 errors in your query.
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema> should be PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
The dbo:bandMember ?bandmember predicate and object should be describing the ?band (which has members), not describing ?bandmember (which is the member)
With those fixes in the query, you should see the results you're hoping for --
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX dbr: <http://dbpedia.org/resource/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?bandname ?bandmembername
WHERE
{
?band
foaf:name ?bandname ;
dbo:bandMember ?bandmember ;
dbo:genre dbr:Punk_Rock .
?bandmember
rdfs:label ?bandmembername .
}