What's the highest league of the Nova Scotia Clippers with a total season of less than 4?
CREATE TABLE "list_of_csl_teams" (
  "team" text,
  "city" text,
  "total_seasons" real,
  "seasons" text,
  "highest_league" text
);
SELECT "highest_league" FROM "list_of_csl_teams" WHERE "total_seasons"<4 AND "team"='nova scotia clippers';