At which Conference was the Division in the East, and the Home Stadium named fedexfield?
CREATE TABLE "list_of_professional_sports_teams_in_the" (
  "conference" text,
  "division" text,
  "team" text,
  "city" text,
  "home_stadium" text
);
SELECT "conference" FROM "list_of_professional_sports_teams_in_the" WHERE "division"='east' AND "home_stadium"='fedexfield';