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_91 (rank INTEGER, gold INTEGER)
### Question:
What is the number for rank when gold is less than 0?
### Answer:
SELECT SUM(rank) FROM table_name_91 WHERE gold < 0