What is the grand slam in 1987, when round shows first round, and Ivan Lendl won?
CREATE TABLE "men" (
  "year" real,
  "grand_slam" text,
  "round" text,
  "winner" text,
  "loser" text
);
SELECT "grand_slam" FROM "men" WHERE "year"=1987 AND "round"='first round' AND "winner"='ivan lendl';