What's the D 40 √ when D 43 √ is d 14?
CREATE TABLE "senate_composition_at_the_beginning_of_t" (
  "d_39" text,
  "d_40" text,
  "d_41" text,
  "d_42" text,
  "d_43" text,
  "d_44" text,
  "d_45" text,
  "d_46" text,
  "d_47" text,
  "d_48" text
);
SELECT "d_40" FROM "senate_composition_at_the_beginning_of_t" WHERE "d_43"='d 14';