CREATE TABLE "champions" (
  "season" text,
  "champion" text,
  "constructor" text,
  "teams_champion" text,
  "secondary_class" text,
  "nations_cup" text,
  "winter_series_champion" text
);

Question: Which Nations Cup has a Winter Series Champion of Andrew Bentley?
SQL: SELECT "nations_cup" FROM "champions" WHERE "winter_series_champion"='andrew bentley';

Question: What secondary class of Winter Series champion Andrew Bentley?
SQL: SELECT "secondary_class" FROM "champions" WHERE "winter_series_champion"='andrew bentley';

Question: What season has the champion of Nicolas Kiesa?
SQL: SELECT "season" FROM "champions" WHERE "champion"='nicolas kiesa';

Question: What team's champion has a secondary class of Matt Rao for a Winter Series Champion of Not Held?
SQL: SELECT "teams_champion" FROM "champions" WHERE "winter_series_champion"='not held' AND "secondary_class"='matt rao';

Question: Who is the Teams' Champion for the Season of 1989?
SQL: SELECT "teams_champion" FROM "champions" WHERE "season"='1989';