What is the epa rated combined fuel economy for the Nissan Leaf?
CREATE TABLE table_23840623_4 (epa_rated_combined_fuel_economy VARCHAR, vehicle VARCHAR)
SELECT epa_rated_combined_fuel_economy FROM table_23840623_4 WHERE vehicle = "Nissan Leaf"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23840623_4 (epa_rated_combined_fuel_economy VARCHAR, vehicle VARCHAR) Question: What is the epa rated combined fuel economy for the Nissan Leaf? [/INST] SELECT epa_rated_combined_fuel_economy FROM table_23840623_4 WHERE vehicle = "Nissan Leaf" </s>