What is {subject has role} of {Harry Potter} that is {of} is {Harry Potter} ?
Which actor plays Harry Potter in the movies of the same name?
SELECT ?obj WHERE { wd:Q3244512 p:P2868 ?s . ?s ps:P2868 ?obj . ?s pq:P642 wd:Q8337 }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q3244512> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2868> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P642> <http://wikidata.dbpedia.org/resource/Q8337>
} 

What is the actor's name who portrays the main character in the Harry Potter movies?