CREATE TABLE "translators" (
  "call_sign" text,
  "frequency_m_hz" real,
  "city_of_license" text,
  "erp_w" real,
  "class" text,
  "fcc_info" text
);

Question: Which Class has a Frequency MHz larger than 91.5, and a City of license of hyannis, nebraska?
SQL: SELECT "class" FROM "translators" WHERE "frequency_m_hz">91.5 AND "city_of_license"='hyannis, nebraska';

Question: Which Class has a ERP W larger than 205, and a Frequency MHz smaller than 93.9, and a Call sign of k210cb?
SQL: SELECT "class" FROM "translators" WHERE "erp_w">205 AND "frequency_m_hz"<93.9 AND "call_sign"='k210cb';

Question: Which Frequency MHz that has a ERP W larger than 205, and a Call sign of k230ap?
SQL: SELECT MAX("frequency_m_hz") FROM "translators" WHERE "erp_w">205 AND "call_sign"='k230ap';

Question: Which Frequency MHz has a ERP W of 250?
SQL: SELECT MAX("frequency_m_hz") FROM "translators" WHERE "erp_w"=250;