A burden may pertain-to an obligation.Logical formLearned from8 sentences. A burden can be chemical.Logical formLearned from8 sentences. A burden can be on (service providers).Logical formLearned from8 sentences. A government may bear a burden.Logical formLearned from8 sentences. Burdens can be perceived.Logical formLearned from8 sentences. A burden can be in transmitting.Logical formLearned from8 sentences. A burden can be on a federal government.Logical formLearned from8 sentences. An estimate may pertain-to an (information collection burden).Logical formLearned from8 sentences. A burden can be on (mine operators).Logical formLearned from8 sentences. Burdens can be heavy.Logical formLearned from8 sentences. Burden can be on an industry.Logical formLearned from8 sentences. A national-agency may account for a burden of a paperwork.Logical formLearned from8 sentences. Defendant may have a burden of proving by a preponderance of evidence.Logical formLearned from8 sentences. A burden can be constituted-of-or-filled-with refugees.Logical formLearned from8 sentences. Burdens can be in a country.Logical formLearned from8 sentences.