Sources can be high-level.Logical formLearned from178 sentences. A source can be constituted-of-or-filled-with earnings.Logical formLearned from177 sentences. A source can be written.Logical formLearned from177 sentences. Sources can be from a month.Logical formLearned from177 sentences. A source may pertain-to an illness.Logical formLearned from176 sentences. Sources can be constituted-of-or-filled-with advice.Logical formLearned from176 sentences. A source can be constituted-of-or-filled-with credit.Logical formLearned from176 sentences. Reliable sources can be constituted-of-or-filled-with information.Logical formLearned from175 sentences. (Energy sources) may undergo a use.Logical formLearned from175 sentences. A source may pertain-to pollution.Logical formLearned from175 sentences. A source can be close to a delegation.Logical formLearned from175 sentences. An independent source can be constituted-of-or-filled-with information.Logical formLearned from174 sentences. References can be to sources.Logical formLearned from173 sentences. A source may pertain-to a word.Logical formLearned from173 sentences. A source can be constituted-of-or-filled-with cells.Logical formLearned from173 sentences.