CREATE TABLE table_35121 ("Call sign" CLOB, "Frequency MHz" FLOAT, "City of license" CLOB, "ERP W" FLOAT, "Class" CLOB, "FCC info" CLOB)

What is the city of license with an ERP W less than 170?
SELECT "City of license" FROM table_35121 WHERE "ERP W" < '170'
SELECT "City of license" FROM "table_35121" WHERE "ERP W" < '170'