A disaster can be biological.Logical formLearned from66 sentences. An impact may pertain-to a disaster.Logical formLearned from66 sentences. Vulnerability can be to natural disasters.Logical formLearned from66 sentences. Disasters may pertain-to the world.Logical formLearned from66 sentences. A (ferry disaster) may pertain-to a continent.Logical formLearned from66 sentences. A (death toll) may pertain-to a disaster.Logical formLearned from66 sentences. A disaster may claim some lives.Logical formLearned from66 sentences. A film can be a disaster.Logical formLearned from65 sentences. Thousands can be constituted-of-or-filled-with disasters.Logical formLearned from65 sentences. A response can be to a disaster.Logical formLearned from65 sentences. Natural disasters can be in history.Logical formLearned from65 sentences. A disaster may kill some astronauts.Logical formLearned from65 sentences. An aftermath may pertain-to a disaster.Logical formLearned from65 sentences. A disaster can be for a nation.Logical formLearned from65 sentences. A blame can be for a disaster.Logical formLearned from64 sentences.