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_31 (lane INTEGER, name VARCHAR, rank VARCHAR)
### Question:
Name the least lane for kasey giteau and rank less than 18
### Answer:
SELECT MIN(lane) FROM table_name_31 WHERE name = "kasey giteau" AND rank < 18