In how many countries is Itaipu a supply point for electricity?
CREATE TABLE table_19001916_2 (country VARCHAR, supply_point VARCHAR)
SELECT COUNT(country) FROM table_19001916_2 WHERE supply_point = "Itaipu"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_19001916_2 (country VARCHAR, supply_point VARCHAR) Question: In how many countries is Itaipu a supply point for electricity? [/INST] SELECT COUNT(country) FROM table_19001916_2 WHERE supply_point = "Itaipu" </s>