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

Question: Tell me the time/retired for Laps larger than 63 and has a grid of 20
SQL: SELECT "time_retired" FROM "classification" WHERE "laps">63 AND "grid"=20;

Question: I want the sum of Laps for wolfgang von trips, and a grid larger than 5
SQL: SELECT SUM("laps") FROM "classification" WHERE "driver"='wolfgang von trips' AND "grid">5;