A US-city can be a trail of litter.Logical formLearned from13 sentences. Hikes can be on trails.Logical formLearned from13 sentences. A trail can be constituted-of-or-filled-with broken windows.Logical formLearned from13 sentences. A (solo investigator) can be hot on a trail.Logical formLearned from13 sentences. A person may have trails.Logical formLearned from13 sentences. A trail can be arduous.Logical formLearned from13 sentences. A guy can be on a trail.Logical formLearned from13 sentences. A network can be constituted-of-or-filled-with (carriage trails).Logical formLearned from13 sentences. A cop can be on a trail of a killer.Logical formLearned from13 sentences. A trail may pertain-to cash.Logical formLearned from13 sentences. Trails can be well-known.Logical formLearned from13 sentences. Trails can be in shape.Logical formLearned from13 sentences. Sight may pertain-to a trail.Logical formLearned from13 sentences. A trail may undergo maintenance.Logical formLearned from13 sentences. A person may follow trails.Logical formLearned from13 sentences.