What is the launched date of the station in cora huichol tepehuano nahuatl language?
CREATE TABLE "stations" (
  "call_sign" text,
  "launched" text,
  "transmitting_from" text,
  "coverage" text,
  "languages" text,
  "frequency" text
);
SELECT "launched" FROM "stations" WHERE "languages"='cora huichol tepehuano nahuatl';