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"
### Context: CREATE TABLE table_19001916_2 (country VARCHAR, supply_point VARCHAR) ### Question: In how many countries is Itaipu a supply point for electricity? ### Answer: SELECT COUNT(country) FROM table_19001916_2 WHERE supply_point = "Itaipu"