CREATE TABLE "as_a_constructor" (
  "year" real,
  "chassis" text,
  "engine_s" text,
  "tyres" text,
  "points" real
);

Question: What is the lowest points of British Racing after 1963?
SQL: SELECT MIN("points") FROM "as_a_constructor" WHERE "year">1963;

Question: Which chassis was used when over 6 points were earned?
SQL: SELECT "chassis" FROM "as_a_constructor" WHERE "points"=6;

Question: What is the average points of the drivers before 1964?
SQL: SELECT AVG("points") FROM "as_a_constructor" WHERE "year"<1964;