What is the highest number of players during 1r year with a clay set and more than 4 aces?
CREATE TABLE "miscellaneous" (
  "aces" real,
  "player" real,
  "opponent" text,
  "round" text,
  "year" text,
  "event" real,
  "surface" text,
  "sets" text
);
SELECT MAX("player") FROM "miscellaneous" WHERE "year"='1r' AND "sets"='clay' AND "aces">4;