Input (grade 12): Where clarification is needed, a fortified chÃ cents teau (that is, a castle) is called a chÃ cents teau fort, such as ChÃ cents teau fort de Roquetaillade.
Output (grade 9): Where clarification is needed, a fortified chÃ cents teau (that is, a castle) is called a chÃ cents teau fort.