The Apollo astronaut who was 38y 9m 7d when first stepping on the moon is who?
CREATE TABLE "apollo_astronauts_who_walked_on_the_moon" (
  "name" text,
  "born" text,
  "age_at_first_step" text,
  "mission" text,
  "lunar_eva_dates" text,
  "service" text
);
SELECT "born" FROM "apollo_astronauts_who_walked_on_the_moon" WHERE "age_at_first_step"='38y 9m 7d';