user: ### NOW ANSWER:
Question: Which Power (MW) has a Voltage (kV) of 500, and a Country of Argentina?
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 AVG("Power (MW)") FROM "Table" WHERE "Voltage (kV)" = 500.0 AND "Country" = 'Argentina';