Question: Who are the  judges of the television show whose anchor is Josh Groban?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x prop:presenter <http://dbpedia.org/resource/Josh_Groban> . ?x prop:judges ?uri  . ?x rdf:type onto:TelevisionShow}