A burden can be on a country.Logical formLearned from130 sentences. A burden may be lifted.Logical formLearned from127 sentences. A burden may pertain-to costs.Logical formLearned from126 sentences. A burden may pertain-to a debt.Logical formLearned from126 sentences. (Debt burdens) can be heavy.Logical formLearned from125 sentences. A burden can be on employers.Logical formLearned from125 sentences. A male can be a burden.Logical formLearned from123 sentences. Burdens can be environmental.Logical formLearned from123 sentences. A burden may be puted on a taxpayer.Logical formLearned from122 sentences. A burden can be constituted-of-or-filled-with disease.Logical formLearned from121 sentences. A burden may be lifted.Logical formLearned from121 sentences. A burden can be hours.Logical formLearned from119 sentences. A burden can be constituted-of-or-filled-with guilt.Logical formLearned from118 sentences. A (tax burden) may pertain-to persons.Logical formLearned from118 sentences. A burden can be physical.Logical formLearned from118 sentences.