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

Question: what is the grid when the driver is louis rosier and the laps is more than 78?
SQL: SELECT MIN("grid") FROM "classification" WHERE "driver"='louis rosier' AND "laps">78;

Question: what is the time/retired when the driver is toulo de graffenried?
SQL: SELECT "time_retired" FROM "classification" WHERE "driver"='toulo de graffenried';

Question: what is the laps when the driver is tony rolt and the grid is less than 10?
SQL: SELECT SUM("laps") FROM "classification" WHERE "driver"='tony rolt' AND "grid"<10;

Question: what is the time/retired when the constructor is maserati and the laps is 90?
SQL: SELECT "time_retired" FROM "classification" WHERE "constructor"='maserati' AND "laps"=90;