A burden can be bacterial.Logical formLearned from19 sentences. A size may pertain-to a burden.Logical formLearned from19 sentences. A burden may get heavier.Logical formLearned from19 sentences. A proportion may pertain-to a (tax burden).Logical formLearned from19 sentences. A burden can be on courts.Logical formLearned from19 sentences. A burden can be on firms.Logical formLearned from19 sentences. A burden can be lasting.Logical formLearned from19 sentences. A burden can be institutional.Logical formLearned from19 sentences. A (body burden) can be chemical.Logical formLearned from19 sentences. A (tax burden) can be on labor.Logical formLearned from19 sentences. A burden may pertain-to a respondent.Logical formLearned from19 sentences. A burden may pertain-to a role.Logical formLearned from19 sentences. A burden may pertain-to ambitions.Logical formLearned from19 sentences. Refugees can be a burden.Logical formLearned from19 sentences. A US-president can be a burden.Logical formLearned from19 sentences.