A (paper trail) may pertain-to a person.Logical formLearned from52 sentences. A person can be on a (comeback trail).Logical formLearned from52 sentences. A trail may take persons.Logical formLearned from52 sentences. Trails may undergo a development.Logical formLearned from52 sentences. A powder can be constituted-of-or-filled-with some trails.Logical formLearned from52 sentences. Trails can be in a us-state.Logical formLearned from51 sentences. Access can be to a trail.Logical formLearned from51 sentences. A trail can be visible.Logical formLearned from51 sentences. A person may walk a trail.Logical formLearned from51 sentences. A trail can be famous.Logical formLearned from51 sentences. A female may blaze a trail.Logical formLearned from51 sentences. A trail can be endless.Logical formLearned from51 sentences. A trail can be fresh.Logical formLearned from51 sentences. A trail can be constituted-of-or-filled-with ants.Logical formLearned from51 sentences. Trails can be urban.Logical formLearned from51 sentences.