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_21 (lane INTEGER, name VARCHAR)
### Question:
What is Elizabeth Simmonds' average lane number?
### Answer:
SELECT AVG(lane) FROM table_name_21 WHERE name = "elizabeth simmonds"