Which school has the mascot of the Colonials?
CREATE TABLE "member_teams" (
  "institution" text,
  "location" text,
  "founded" real,
  "affiliation" text,
  "enrollment" real,
  "team_nickname" text,
  "primary_conference" text,
  "home_rink" text
);
SELECT "institution" FROM "member_teams" WHERE "team_nickname"='Colonials';