A burden can be on countries.Logical formLearned from13 sentences. Persons may reduce burden.Logical formLearned from13 sentences. Burdens can be on interstate commerce.Logical formLearned from13 sentences. Burdens can be constituted-of-or-filled-with disease.Logical formLearned from13 sentences. A burden of proof can be on a student.Logical formLearned from13 sentences. A burden can be fearful.Logical formLearned from13 sentences. A minimum can be constituted-of-or-filled-with burden.Logical formLearned from13 sentences. Burden can be on small businesses.Logical formLearned from13 sentences. A us-state may meet a burden.Logical formLearned from13 sentences. A burden can be equitable.Logical formLearned from13 sentences. A burden can be for students.Logical formLearned from13 sentences. A burden can be on doctors.Logical formLearned from13 sentences. Respect can be to a burden.Logical formLearned from13 sentences. A burden can be a time.Logical formLearned from13 sentences. A burden can be constituted-of-or-filled-with health.Logical formLearned from13 sentences.