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_52 (house_of_rep_seats INTEGER, abbr VARCHAR)
### Question:
What is the average number of House of Representatives seats had an abbreviation of d66?
### Answer:
SELECT AVG(house_of_rep_seats) FROM table_name_52 WHERE abbr = "d66"