user: ### NOW ANSWER:
Question: How much Voltage (kV) has a Country of argentina, and a Power (MW) larger than 30, and a Supply point of yacyretá?
Columns: ['Entities', 'Country', 'Supply point', 'Voltage (kV)', 'Power (MW)']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['FURNAS, ELECTROSUL, ELECTROBRAS', 'Brazil', 'Itaipu', 500.0, 7000.0]
SQL:

assistant: SELECT COUNT("Voltage (kV)") FROM "Table" WHERE "Country" = 'argentina' AND "Power (MW)" > 30.0 AND "Supply point" = 'yacyretá';