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_37 (heat VARCHAR, name VARCHAR, lane VARCHAR)
### Question:
What is the total heat number of sun yang, who has a lane less than 2?
### Answer:
SELECT COUNT(heat) FROM table_name_37 WHERE name = "sun yang" AND lane < 2