Question: Tell me the academic major of student Valdimir Putin who graduated from Saint Petersburg State University.
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q7747 p:P69 ?s . ?s ps:P69 wd:Q27621 . ?s pq:P812 ?value1 . ?s pq:P1066 ?value2 }