What is the Distance of the 1945 Vuelta a Espana with 4A Stage?
CREATE TABLE table_name_20 (distance VARCHAR, stage VARCHAR)
SELECT distance FROM table_name_20 WHERE stage = "4a"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_20 (distance VARCHAR, stage VARCHAR) Question: What is the Distance of the 1945 Vuelta a Espana with 4A Stage? [/INST] SELECT distance FROM table_name_20 WHERE stage = "4a" </s>