What is the constructor for the VII Race of Champions?
CREATE TABLE "non_championship_race_results" (
  "race_name" text,
  "circuit" text,
  "date" text,
  "winning_driver" text,
  "constructor" text,
  "report" text
);
SELECT "constructor" FROM "non_championship_race_results" WHERE "race_name"='vii race of champions';