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

Question: How many laps for grid 12?
SQL: SELECT "laps" FROM "classification" WHERE "grid"=12;

Question: Who built the 21 grid car that retired due to suspension?
SQL: SELECT "constructor" FROM "classification" WHERE "grid">21 AND "time_retired"='suspension';