user: Question: Which Crude death rate (per 1000) has Deaths of 768, and a Crude birth rate (per 1000) smaller than 29.7?
Columns: ['Average population (x 1000)', 'Live births', 'Deaths', 'Natural change', 'Crude birth rate (per 1000)', 'Crude death rate (per 1000)', 'Natural change (per 1000)']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'real']
Sample row: [45.0, '2 073', '766', '1 307', 47.1, 17.4, 29.7]
SQL:

assistant: SELECT "Crude death rate (per 1000)" FROM "Table" WHERE "Deaths" = '768' AND "Crude birth rate (per 1000)" < 29.7;