What is the average value of ERP W in Beardstown, Illinois for a frequency greater than 93.5?
CREATE TABLE "low_powered_translators" (
  "call_sign" text,
  "frequency_m_hz" real,
  "city_of_license" text,
  "erp_w" real,
  "class" text,
  "fcc_info" text
);
SELECT AVG("erp_w") FROM "low_powered_translators" WHERE "city_of_license"='beardstown, illinois' AND "frequency_m_hz">93.5;