Which ERP W is the highest one that has a Call sign of w255bi?
CREATE TABLE table_38706 (
    "Call sign" text,
    "Frequency MHz" real,
    "City of license" text,
    "ERP W" real,
    "Class" text,
    "FCC info" text
)
SELECT MAX("ERP W") FROM table_38706 WHERE "Call sign" = 'w255bi'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which ERP W is the highest one that has a Call sign of w255bi? ### Input: CREATE TABLE table_38706 (
    "Call sign" text,
    "Frequency MHz" real,
    "City of license" text,
    "ERP W" real,
    "Class" text,
    "FCC info" text
) ### Response: SELECT MAX("ERP W") FROM table_38706 WHERE "Call sign" = 'w255bi'