A burden can be on operators.Logical formLearned from11 sentences. A burden can be on a president.Logical formLearned from11 sentences. Burdens can be unjustifiable.Logical formLearned from11 sentences. A burden can be for parents.Logical formLearned from11 sentences. A burden can be on citizens.Logical formLearned from11 sentences. A burden can be on an administration.Logical formLearned from11 sentences. A burden can be on a court.Logical formLearned from11 sentences. An idea may pertain-to a burden.Logical formLearned from11 sentences. A need can be for (burden sharing).Logical formLearned from11 sentences. A burden can be deadly.Logical formLearned from11 sentences. A burden can be unwieldy.Logical formLearned from11 sentences. Power can be a burden.Logical formLearned from11 sentences. Burdens can be ideological.Logical formLearned from11 sentences. A burden can be on (future generations).Logical formLearned from11 sentences. Burdens can be on exercise.Logical formLearned from11 sentences.