what is the event when 2009-10 is dnp?
CREATE TABLE "grand_slam_record" (
  "event" text,
  "2006_07" text,
  "2009_10" text,
  "2010_11" text,
  "2011_12" text,
  "2012_13" text
);
SELECT "event" FROM "grand_slam_record" WHERE "2009_10"='dnp';