A shipyard may undergo a collapse.Logical formLearned from7 sentences. A collapse may pertain-to a star.Logical formLearned from7 sentences. Protection can be against collapse.Logical formLearned from7 sentences. Some months can be before a collapse.Logical formLearned from7 sentences. Political structures may undergo a collapse.Logical formLearned from7 sentences. Stars may undergo a collapse.Logical formLearned from7 sentences. A collapse may be witnessed.Logical formLearned from7 sentences. (Oil prices) may undergo a collapse.Logical formLearned from7 sentences. A collapse can be in (asset prices).Logical formLearned from7 sentences. A collapse can be at a world-city.Logical formLearned from7 sentences. Primary care may undergo a collapse.Logical formLearned from7 sentences. An economic collapse may pertain-to 1930s.Logical formLearned from7 sentences. A social contract may undergo a collapse.Logical formLearned from7 sentences. Scams may undergo a collapse.Logical formLearned from7 sentences. An (iron core) may undergo a collapse.Logical formLearned from7 sentences.