Sources may speculate that something-is-the-case.Logical formLearned from129 sentences. A source may pertain-to an article.Logical formLearned from129 sentences. Sources may show that something-is-the-case.Logical formLearned from129 sentences. A source can be clear.Logical formLearned from129 sentences. A source can be international.Logical formLearned from129 sentences. A source can be close to a female.Logical formLearned from129 sentences. Sources can be constituted-of-or-filled-with iron.Logical formLearned from128 sentences. Pollution can be from sources.Logical formLearned from128 sentences. A source can be constituted-of-or-filled-with (tax revenue).Logical formLearned from128 sentences. Source may be posted by a male.Logical formLearned from127 sentences. A source can be prominent.Logical formLearned from127 sentences. A (news source) may pertain-to a person.Logical formLearned from127 sentences. A person may have a source of income.Logical formLearned from127 sentences. (Water sources) can be underground.Logical formLearned from127 sentences. A person may know a source.Logical formLearned from127 sentences.