What is the average Lane where Belarus is the nationality?
CREATE TABLE table_name_57 (lane INTEGER, nationality VARCHAR)
SELECT AVG(lane) FROM table_name_57 WHERE nationality = "belarus"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_57 (lane INTEGER, nationality VARCHAR) Question: What is the average Lane where Belarus is the nationality? [/INST] SELECT AVG(lane) FROM table_name_57 WHERE nationality = "belarus" </s>