What primary conference does the team nicknamed Phoenix belongs to?
CREATE TABLE "member_teams" (
  "institution" text,
  "location" text,
  "founded" real,
  "affiliation" text,
  "enrollment" real,
  "team_nickname" text,
  "primary_conference" text,
  "home_rink" text
);
SELECT "primary_conference" FROM "member_teams" WHERE "team_nickname"='phoenix';