Which Call sign has an ERP W of 75?
CREATE TABLE "broadcast_translators_of_kjth" (
  "call_sign" text,
  "frequency_m_hz" real,
  "city_of_license" text,
  "facility_id" real,
  "erp_w" real,
  "height_m_ft" text,
  "class" text,
  "fcc_info" text
);
SELECT "call_sign" FROM "broadcast_translators_of_kjth" WHERE "erp_w"=75;