Burdens may increase.Logical formLearned from9 sentences. A burden can be constituted-of-or-filled-with responsibilities.Logical formLearned from9 sentences. A burden can be ecological.Logical formLearned from9 sentences. A burden can be on teachers.Logical formLearned from9 sentences. A country may carry a burden.Logical formLearned from9 sentences. A male may consider a burden.Logical formLearned from9 sentences. A burden can be on respondents.Logical formLearned from9 sentences. An action may result in an undue burden.Logical formLearned from9 sentences. A (burden relief) can be regulatory.Logical formLearned from9 sentences. Evidence may meet a burden.Logical formLearned from9 sentences. (Body burdens) can be constituted-of-or-filled-with lead.Logical formLearned from9 sentences. A burden can be on members.Logical formLearned from9 sentences. A burden can be on participants.Logical formLearned from9 sentences. A burden can be on workers.Logical formLearned from9 sentences. (Debt burdens) can be sustainable.Logical formLearned from9 sentences.