Which call sign has ERP Wlarger than 250, and Frequency MHZ smaller than 99.3?
CREATE TABLE "new_mexico" (
  "call_sign" text,
  "frequency_m_hz" real,
  "city_of_license" text,
  "erp_w" real,
  "fcc_info" text
);
SELECT "call_sign" FROM "new_mexico" WHERE "erp_w">250 AND "frequency_m_hz"<99.3;