What is the Time/Retired that has a Grid smaller than 8, 73 laps, and a Constructor of williams - bmw?
CREATE TABLE "race" (
  "driver" text,
  "constructor" text,
  "laps" real,
  "time_retired" text,
  "grid" real
);
SELECT "time_retired" FROM "race" WHERE "grid"<8 AND "laps"=73 AND "constructor"='williams - bmw';