A collapse of a roof may be caused by a (bomb blast).Logical formLearned from16 sentences. A (welfare state) may undergo a collapse.Logical formLearned from16 sentences. A collapse can be in morale.Logical formLearned from16 sentences. Foreign investment may undergo a collapse.Logical formLearned from16 sentences. A (business group) may undergo a collapse.Logical formLearned from16 sentences. A (death toll) can be from a collapse of an (apartment block).Logical formLearned from16 sentences. A collapse can be in a (property market).Logical formLearned from15 sentences. A collapse can be speedy.Logical formLearned from15 sentences. A collapse can be in housing.Logical formLearned from15 sentences. (Peace accords) may undergo a collapse.Logical formLearned from15 sentences. A male can be on a verge of collapse.Logical formLearned from15 sentences. A collapse can be permanent.Logical formLearned from15 sentences. A collapse may pertain-to a dam.Logical formLearned from15 sentences. (Tin prices) may undergo a collapse.Logical formLearned from15 sentences. A collapse can be acute.Logical formLearned from15 sentences.