CREATE TABLE "winners_of_the_career_grand_slam" (
  "player" text,
  "australian_open" real,
  "french_open" real,
  "wimbledon" real,
  "us_open" real
);

Question: When did Shirley Fry Irvin win the US Open?
SQL: SELECT MIN("us_open") FROM "winners_of_the_career_grand_slam" WHERE "player"='Shirley Fry Irvin';

Question: What year did Martina Navratilova win Wimbledon?
SQL: SELECT "wimbledon" FROM "winners_of_the_career_grand_slam" WHERE "player"='Martina Navratilova';