A price may fall off a cliff.Logical formLearned from7 sentences. A house can be on a cliff.Logical formLearned from7 sentences. Persons may scale cliffs.Logical formLearned from7 sentences. A male may end_up at an edge of a cliff.Logical formLearned from7 sentences. Persons may see a cliff.Logical formLearned from7 sentences. Cliffs can be mystical.Logical formLearned from7 sentences. Cliffs may pertain-to a valley.Logical formLearned from7 sentences. Persons may go_off a cliff.Logical formLearned from7 sentences. Cliffs may pertain-to a world-city.Logical formLearned from7 sentences. Cliffs can be majestic.Logical formLearned from7 sentences. A view may show cliffs.Logical formLearned from7 sentences. Duck may step off a cliff.Logical formLearned from7 sentences. (Cliff walls) can be high.Logical formLearned from7 sentences. Cliffs may provide habitat.Logical formLearned from7 sentences. Cliffs can be slippery.Logical formLearned from7 sentences.