What is the Aircraft when Kabul was the location, unknown fatalities, and the tail number was ya-ban?
CREATE TABLE "accidents_and_incidents" (
  "location" text,
  "aircraft" text,
  "tail_number" text,
  "aircraft_damage" text,
  "fatalities" text
);
SELECT "aircraft" FROM "accidents_and_incidents" WHERE "location"='kabul' AND "fatalities"='unknown' AND "tail_number"='ya-ban';