user: Question: What is the country where there are 8 children per donor and no data for donor payments?
Columns: ['Country', 'Donor payment', 'Children per donor', 'Donor anonymity', 'Allowed recipients']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Belgium', 'no data', '6 children', 'varies', 'no data']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Children per donor" = '8 children' AND "Donor payment" = 'no data';