What is the Sign-in/Bicker at wash50 on washington rd?
CREATE TABLE "historical_list_of_princeton_eating_club" (
  "name" text,
  "years_of_operation" text,
  "location" text,
  "historical_photos" text,
  "year_clubhouse_constructed" text,
  "sign_in_bicker" text,
  "year_co_ed" text
);
SELECT "sign_in_bicker" FROM "historical_list_of_princeton_eating_club" WHERE "location"='wash50 on washington rd';