Question: Who authored the work illustrated by Hiroyuki Takei?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:illustrator res:Hiroyuki_Takei . ?x prop:author ?uri  . }