A burden can be environmental.Logical formLearned from211 sentences. A person can be a burden.Logical formLearned from207 sentences. Part may pertain-to a burden.Logical formLearned from193 sentences. A part may pertain-to a burden.Logical formLearned from188 sentences. A burden may pertain-to a war.Logical formLearned from187 sentences. A burden may pertain-to a disease.Logical formLearned from178 sentences. A burden can be on a person.Logical formLearned from173 sentences. A burden can be to a male.Logical formLearned from169 sentences. A burden can be constituted-of-or-filled-with debt.Logical formLearned from169 sentences. A burden can be on a family.Logical formLearned from167 sentences. A burden may pertain-to a white man.Logical formLearned from161 sentences. A (tax burden) may pertain-to a person.Logical formLearned from157 sentences. A burden can be difficult.Logical formLearned from156 sentences. Burdens can be unreasonable.Logical formLearned from154 sentences. A burden can be on the economy.Logical formLearned from154 sentences.