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_93 (lane INTEGER, nationality VARCHAR, heat VARCHAR)
### Question:
What's Spain's lane with a heat less than 4?
### Answer:
SELECT AVG(lane) FROM table_name_93 WHERE nationality = "spain" AND heat < 4