What is the month and year less than 5 German submarines were lost, less than 6893 were sunk by warship or raider, less than 133746 were sunk by aircraft, and more than 111263 were sunk by U-boat?
CREATE TABLE "references" (
  "month_year" text,
  "sunk_by_u_boat" real,
  "sunk_by_aircraft" real,
  "sunk_by_warship_or_raider" real,
  "sunk_by_mines" real,
  "german_submarines_lost" real
);
SELECT "month_year" FROM "references" WHERE "german_submarines_lost"<5 AND "sunk_by_warship_or_raider"<6893 AND "sunk_by_aircraft"<133746 AND "sunk_by_u_boat">111263;