CREATE TABLE "stations" (
  "call_sign" text,
  "frequency" text,
  "city_of_license" text,
  "facility_id" real,
  "erp_power_w" real,
  "height_m_ft" text,
  "class" text
);

Question: Which Facility ID has a City of license of springfield, ma, and a ERP / Power W smaller than 230?
SQL: SELECT MAX("facility_id") FROM "stations" WHERE "city_of_license"='springfield, ma' AND "erp_power_w"<230;

Question: Which Frequency has a Facility ID of 13598?
SQL: SELECT "frequency" FROM "stations" WHERE "facility_id"=13598;

Question: WHich Facility ID has a Call sign of wnpr?
SQL: SELECT AVG("facility_id") FROM "stations" WHERE "call_sign"='wnpr';

Question: Which Frequency has a Facility ID of 13598?
SQL: SELECT "frequency" FROM "stations" WHERE "facility_id"=13598;