CREATE TABLE table_79686 ("Call sign" TEXT, "Frequency MHz" FLOAT, "City of license" TEXT, "ERP W" FLOAT, "Class" TEXT, "FCC info" TEXT)

What is the call sign with a 222 erp w?
SELECT "Call sign" FROM table_79686 WHERE "ERP W" = '222'
SELECT "Call sign" FROM "table_79686" WHERE "ERP W" = '222'