Travelers can be on trails.Logical formLearned from9 sentences. A trail can be constituted-of-or-filled-with events.Logical formLearned from9 sentences. A trail may be groomed.Logical formLearned from9 sentences. Trails may be designated for hiking.Logical formLearned from9 sentences. A trail may pertain-to a military-commander.Logical formLearned from9 sentences. A trail may undergo a closure.Logical formLearned from9 sentences. A trail can be interpretative.Logical formLearned from9 sentences. A trail can be subtle.Logical formLearned from9 sentences. A (trail system) may pertain-to a city.Logical formLearned from9 sentences. A trail may proceed.Logical formLearned from9 sentences. A feature may pertain-to a trail.Logical formLearned from9 sentences. A trail can be positive.Logical formLearned from9 sentences. A mountain may undergo (hiking trails).Logical formLearned from9 sentences. A trail can be about a mile.Logical formLearned from9 sentences. A trail may end at a road.Logical formLearned from9 sentences.