How much is a product with a Sampling Rate of 12-bit 40khz?
CREATE TABLE "comparison" (
  "model" text,
  "release_date" real,
  "price" text,
  "midi_inputs_outputs" text,
  "sampling_rate" text,
  "sampling_memory_upgrade_able" text,
  "sampling_time" text,
  "storage_method" text,
  "pad_banks" real
);
SELECT "price" FROM "comparison" WHERE "sampling_rate"='12-bit 40khz';