CREATE TABLE "results" (
  "year" real,
  "circuit" text,
  "winning_drivers" text,
  "winning_constructor" text,
  "regulations" text,
  "report" text
);

Question: What regulations have hudson as the winning constructor?
SQL: SELECT "regulations" FROM "results" WHERE "winning_constructor"='hudson';

Question: What regulations have carlos arzani as the winning driver?
SQL: SELECT "regulations" FROM "results" WHERE "winning_drivers"='carlos arzani';

Question: What is the latest year that has ferrari 166 fl as the winning constructor?
SQL: SELECT MAX("year") FROM "results" WHERE "winning_constructor"='ferrari 166 fl';