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_99 (rank INTEGER, total VARCHAR, nation VARCHAR)
### Question:
What is the highest rank when the metal total is 1 and the nation is the United Kingdom?
### Answer:
SELECT MAX(rank) FROM table_name_99 WHERE total = 1 AND nation = "united kingdom"