What is the ERP W of a Frequency MHz greater than 89.5 in the city of Washburn, Texas?
CREATE TABLE "broadcast_translators_of_kanz" (
  "call_sign" text,
  "frequency_m_hz" real,
  "city_of_license" text,
  "erp_w" real,
  "class" text,
  "fcc_info" text
);
SELECT "erp_w" FROM "broadcast_translators_of_kanz" WHERE "frequency_m_hz">89.5 AND "city_of_license"='washburn, texas';