Who was the 2nd place team when the location was Tulsa, OK before 1956?
CREATE TABLE "national_softball_congress_1947_to_1957" (
  "year" real,
  "1st_place_team" text,
  "2nd_place_team" text,
  "3rd_place_team" text,
  "4th_place_team" text,
  "host_location" text
);
SELECT "2nd_place_team" FROM "national_softball_congress_1947_to_1957" WHERE "host_location"='tulsa, ok' AND "year"<1956;