Trails can be forested.Logical formLearned from21 sentences. A trail can be bumpy.Logical formLearned from21 sentences. A trail can be interesting.Logical formLearned from21 sentences. A maze can be constituted-of-or-filled-with trails.Logical formLearned from21 sentences. A male may lick a trail.Logical formLearned from21 sentences. A male may go on a (campaign trail).Logical formLearned from21 sentences. Persons may leave a trail.Logical formLearned from21 sentences. A person may ride a trail.Logical formLearned from21 sentences. Trails can be interesting.Logical formLearned from21 sentences. A female may leave a trail.Logical formLearned from21 sentences. A person may find trails.Logical formLearned from21 sentences. A trail can be constituted-of-or-filled-with dirt.Logical formLearned from21 sentences. Trails can be tough.Logical formLearned from21 sentences. A hike can be on a (nature trail).Logical formLearned from21 sentences. A trail can be in a US-city.Logical formLearned from21 sentences.