A world-city can be on a verge of collapse.Logical formLearned from7 sentences. Losses may stem from a collapse of a market.Logical formLearned from7 sentences. A fallout can be from a collapse of a (subprime home loan market).Logical formLearned from7 sentences. Internal security may undergo a collapse.Logical formLearned from7 sentences. Fighting can be after some collapse.Logical formLearned from7 sentences. Violations of (safety rules) can be behind a collapse.Logical formLearned from7 sentences. A (road bridge) may undergo a collapse.Logical formLearned from7 sentences. A collapse may be rattled.Logical formLearned from7 sentences. A ramp may undergo a collapse.Logical formLearned from7 sentences. Accusations may lead to a collapse of a deal.Logical formLearned from7 sentences. A (yugoslav federation) may undergo a collapse.Logical formLearned from7 sentences. A general may undergo a collapse.Logical formLearned from7 sentences. (Building experts) may blame collapses on a use of (construction materials).Logical formLearned from7 sentences. Armed conflicts can be after a collapse.Logical formLearned from7 sentences. A (gold mine) may undergo a collapse.Logical formLearned from7 sentences.