Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_55 (freq INTEGER, owner VARCHAR, day_power___w__ VARCHAR)
### Question:
What is the WPW freq with a day power of 250?
### Answer:
SELECT SUM(freq) FROM table_name_55 WHERE owner = "wpw" AND day_power___w__ > 250