What is on tv at 9:30 on the same channel that had e2 on at 7:30?
CREATE TABLE "thursday" (
  "7_00" text,
  "7_30" text,
  "8_00" text,
  "8_30" text,
  "9_00" text,
  "9_30" text,
  "10_00" text
);
SELECT "9_30" FROM "thursday" WHERE "7_30"='e2';