CREATE TABLE "grand_slam" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);

Question: Which Outcome has a Championship of us championships, and a Score in the final of 5–7, 6–1, 6–3, 6–3?
SQL: SELECT "outcome" FROM "grand_slam" WHERE "championship"='us championships' AND "score_in_the_final"='5–7, 6–1, 6–3, 6–3';

Question: Which Outcome has a Year larger than 1939, and an Opponent in the final of frank kovacs?
SQL: SELECT "outcome" FROM "grand_slam" WHERE "year">1939 AND "opponent_in_the_final"='frank kovacs';

Question: Which Surface has an Opponent in the final of don mcneill, and a Year of 1940?
SQL: SELECT "surface" FROM "grand_slam" WHERE "opponent_in_the_final"='don mcneill' AND "year"=1940;

Question: How many years have an Opponent in the final of welby van horn?
SQL: SELECT SUM("year") FROM "grand_slam" WHERE "opponent_in_the_final"='welby van horn';