How many clean electric grid california (san francisco) figures are given for the Nissan Leaf?
CREATE TABLE table_23840623_4 (clean_electric_grid_california__san_francisco_ VARCHAR, vehicle VARCHAR)
SELECT COUNT(clean_electric_grid_california__san_francisco_) 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 (clean_electric_grid_california__san_francisco_ VARCHAR, vehicle VARCHAR) Question: How many clean electric grid california (san francisco) figures are given for the Nissan Leaf? [/INST] SELECT COUNT(clean_electric_grid_california__san_francisco_) FROM table_23840623_4 WHERE vehicle = "Nissan Leaf" </s>