CREATE TABLE "non_championship_race_results" (
  "race_name" text,
  "circuit" text,
  "date" text,
  "winning_driver" text,
  "constructor" text,
  "report" text
);

Question: Which driver won at the Sachsenring circuit?
SQL: SELECT "winning_driver" FROM "non_championship_race_results" WHERE "circuit"='Sachsenring';

Question: Which constructor was present at the Redex Trophy race?
SQL: SELECT "constructor" FROM "non_championship_race_results" WHERE "race_name"='RedeX Trophy';

Question: How many different constructors had Paul Thiel as a winning driver?
SQL: SELECT COUNT("constructor") FROM "non_championship_race_results" WHERE "winning_driver"='Paul Thiel';