Complex sentence: Officially Zimbabwe's debt is $7 billion or over 200% of the country's GDP however this figure is disputed with figures as high as $11 billion being quoted once debts to other African countries and China are included.
Split into simpler sentences: Officially Zimbabwe's debt is $7 billion, or over 200% of the country's GDP. However, this figure is disputed, with figures as high as $11 billion being quoted, once debts to other African countries and China are included.