A trail can be maintained.Logical formLearned from46 sentences. A US-president may return to a (campaign trail).Logical formLearned from46 sentences. A (campaign trail) may pertain-to a us-state.Logical formLearned from46 sentences. A trail can be constituted-of-or-filled-with promises.Logical formLearned from46 sentences. A person may lose a trail.Logical formLearned from46 sentences. A trail can be constituted-of-or-filled-with wreckage.Logical formLearned from46 sentences. Trail can be by some runs.Logical formLearned from46 sentences. A trail may pertain-to blood.Logical formLearned from45 sentences. A (paper trail) can be verifiable.Logical formLearned from45 sentences. A (mountain-bike trail) can be known.Logical formLearned from45 sentences. Persons may find a trail.Logical formLearned from45 sentences. A trail can be indelible.Logical formLearned from45 sentences. A trail can be circular.Logical formLearned from44 sentences. A trail may be closed.Logical formLearned from44 sentences. A person may find a trail.Logical formLearned from44 sentences.