A national debt may undergo a doubling.Logical formLearned from38 sentences. A (debt burden) may pertain-to a nation.Logical formLearned from38 sentences. (Interest payments) can be on a federal debt.Logical formLearned from38 sentences. A (debt market) may pertain-to the world.Logical formLearned from38 sentences. An increase can be in a debt.Logical formLearned from38 sentences. A debt can be taxable.Logical formLearned from38 sentences. A federal debt can be held.Logical formLearned from38 sentences. A person can be responsible for a debt.Logical formLearned from38 sentences. (Record amounts) can be constituted-of-or-filled-with debt.Logical formLearned from38 sentences. Debts may pertain-to utilities.Logical formLearned from38 sentences. A debt can be mountainous.Logical formLearned from38 sentences. A government may pay debts.Logical formLearned from38 sentences. A (debt problem) can be sovereign.Logical formLearned from38 sentences. Provisions can be for bad debts.Logical formLearned from38 sentences. Debt may pertain-to countries.Logical formLearned from38 sentences.