A cliff can be lush.Logical formLearned from13 sentences. A bus may plunge_off a cliff.Logical formLearned from13 sentences. A bus may go over a cliff.Logical formLearned from12 sentences. Cliffs can be artificial.Logical formLearned from12 sentences. Cliffs can be eroded.Logical formLearned from12 sentences. A person may stand at an edge of a cliff.Logical formLearned from12 sentences. A person may go jump off a cliff.Logical formLearned from12 sentences. A cliff can be slippery.Logical formLearned from12 sentences. Cliff to a side can be access.Logical formLearned from12 sentences. (Cliff faces) can be steep.Logical formLearned from12 sentences. A person may jump_off a cliff.Logical formLearned from12 sentences. Prices may fall off a cliff.Logical formLearned from12 sentences. A person may stand on an edge of a cliff.Logical formLearned from12 sentences. A cliff can be subsequent to falls.Logical formLearned from12 sentences. Cliff can be to a side.Logical formLearned from12 sentences.