What is the value for the byte string when the memory map, decimal, and floating points are all standard and the max memory is smaller than 512?
CREATE TABLE "32_bit_systems" (
  "model" text,
  "floating_point" text,
  "decimal" text,
  "byte_string" text,
  "memory_map" text,
  "max_memory_kwords" real
);
SELECT "byte_string" FROM "32_bit_systems" WHERE "memory_map"='standard' AND "decimal"='standard' AND "floating_point"='standard' AND "max_memory_kwords"<512;