When did Christopher A. Sims graduate from Harvard and what was his major?
SELECT ?value1 ?value2 WHERE { wd:Q109737 p:P69 ?s . ?s ps:P69 wd:Q13371 . ?s pq:P812 ?value1 . ?s pq:P582 ?value2 }
christopher a. sims: Q109737 harvard university: Q13371