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_18 (gold INTEGER, total VARCHAR, silver VARCHAR, nation VARCHAR)
### Question:
What is the sum of the gold medals for the nation of Great britain who had more than 8 silvers and a total of less than 61 medals?
### Answer:
SELECT SUM(gold) FROM table_name_18 WHERE silver > 8 AND nation = "great britain" AND total < 61