A cliff may undergo an erosion.Logical formLearned from9 sentences. Notes may pertain-to a cliff.Logical formLearned from9 sentences. A female may throw herself off a cliff.Logical formLearned from9 sentences. Cliffs can be columnar.Logical formLearned from9 sentences. A side may pertain-to a (cliff face).Logical formLearned from9 sentences. A cliff can be above a river.Logical formLearned from9 sentences. A cliff can be wooded.Logical formLearned from9 sentences. A car may go off a cliff.Logical formLearned from9 sentences. A person may go over a cliff.Logical formLearned from9 sentences. Cliffs can be constituted-of-or-filled-with height.Logical formLearned from9 sentences. A female may drive off a cliff.Logical formLearned from9 sentences. Persons may go off a cliff.Logical formLearned from9 sentences. A person may toss him-or-herself from cliffs.Logical formLearned from9 sentences. Cliffs may overlook a sea.Logical formLearned from9 sentences. A cliff may give in a country.Logical formLearned from9 sentences.