A person may leave a trail.Logical formLearned from34 sentences. Access can be to trails.Logical formLearned from34 sentences. A person may have a (paper trail).Logical formLearned from34 sentences. A trail can be constituted-of-or-filled-with white smoke.Logical formLearned from34 sentences. A trail can be marked.Logical formLearned from33 sentences. A trail may disappear.Logical formLearned from33 sentences. Persons may take a trail.Logical formLearned from33 sentences. Trails may link a range of ruins.Logical formLearned from33 sentences. A (bike trail) can be paved.Logical formLearned from33 sentences. A trail can be clear.Logical formLearned from33 sentences. A trail can be secluded.Logical formLearned from33 sentences. A day can be on a trail.Logical formLearned from33 sentences. Trails can be thin.Logical formLearned from33 sentences. Trails can be flat.Logical formLearned from33 sentences. Trails may undergo a use.Logical formLearned from33 sentences.