Feudalism may undergo a collapse.Logical formLearned from6 sentences. Activity may undergo a collapse.Logical formLearned from6 sentences. Social structures may undergo a collapse.Logical formLearned from6 sentences. A (death toll) can be in a (building collapse).Logical formLearned from6 sentences. An economic collapse can be in a country.Logical formLearned from6 sentences. A collapse may pertain-to a firm.Logical formLearned from6 sentences. Wall may undergo a collapse.Logical formLearned from6 sentences. A collapse can be sustained.Logical formLearned from6 sentences. A collapse may pertain-to a latter.Logical formLearned from6 sentences. Forces can be on a verge of collapse.Logical formLearned from6 sentences. A collapse may begin.Logical formLearned from6 sentences. An adversary may undergo a collapse.Logical formLearned from6 sentences. An orchestra may undergo a collapse.Logical formLearned from6 sentences. Literacy may undergo a collapse.Logical formLearned from6 sentences. A band may undergo a collapse.Logical formLearned from6 sentences.