What is the academic major of Charles Laughton at Royal Academy of Dramatic Art and when did it end?
SELECT ?value1 ?value2 WHERE { wd:Q55264 p:P69 ?s . ?s ps:P69 wd:Q523926 . ?s pq:P812 ?value1 . ?s pq:P582 ?value2 }
charles laughton: Q55264 royal academy of dramatic art: Q523926