CREATE TABLE "race" (
  "driver" text,
  "constructor" text,
  "laps" text,
  "time_retired" text,
  "grid" text
);

Question: David Coulthard was the driver in which grid?
SQL: SELECT "grid" FROM "race" WHERE "driver"='david coulthard';

Question: How many laps were there in grid 21?
SQL: SELECT "laps" FROM "race" WHERE "grid"='21';