CREATE TABLE table_name_43 (call_sign VARCHAR, erp_w VARCHAR, frequency_mhz VARCHAR)

Which call sign, broadcast at less than 103.5MHz, has an ERP W of 50?
SELECT call_sign FROM table_name_43 WHERE erp_w = 50 AND frequency_mhz < 103.5
SELECT "call_sign" FROM "table_name_43" WHERE "erp_w" = 50 AND "frequency_mhz" < 103.5