A burden can be accumulated.Logical formLearned from20 sentences. A shift can be in a (tax burden).Logical formLearned from20 sentences. A burden can be on workers.Logical formLearned from20 sentences. A (burden sharing) can be international.Logical formLearned from20 sentences. A burden can be on resources.Logical formLearned from20 sentences. A burden can be clear.Logical formLearned from20 sentences. A burden can be on providers.Logical formLearned from20 sentences. A shift can be in a burden of proof.Logical formLearned from20 sentences. Rules may impose a burden.Logical formLearned from20 sentences. A burden may pertain-to rules.Logical formLearned from20 sentences. Burdens can be on employers.Logical formLearned from20 sentences. A burden can be on an employee.Logical formLearned from20 sentences. A burden can be on a staff.Logical formLearned from20 sentences. Burdens can be on society.Logical formLearned from20 sentences. Burdens can be needless.Logical formLearned from20 sentences.