Sidewalls may undergo a collapse.Logical formLearned from20 sentences. Societies may undergo a collapse.Logical formLearned from20 sentences. A (land boom) may undergo a collapse.Logical formLearned from20 sentences. A viaduct may undergo a collapse.Logical formLearned from20 sentences. Bubbles may undergo a collapse.Logical formLearned from20 sentences. A model may undergo a collapse.Logical formLearned from20 sentences. (Capital markets) may undergo a collapse.Logical formLearned from20 sentences. The economy can be on an edge of collapse.Logical formLearned from20 sentences. A collapse can be induced.Logical formLearned from20 sentences. A part may pertain-to a collapse.Logical formLearned from20 sentences. An aftermath may pertain-to a (bridge collapse).Logical formLearned from20 sentences. Some years can be after a collapse of a ussr.Logical formLearned from20 sentences. Manufacturing may undergo a collapse.Logical formLearned from20 sentences. Life may undergo a collapse.Logical formLearned from20 sentences. A country may face collapse.Logical formLearned from20 sentences.