Survivors may pertain-to a tragedy.Logical formLearned from99 sentences. Part may pertain-to a tragedy.Logical formLearned from98 sentences. A tragedy can be sad.Logical formLearned from98 sentences. A tragedy may pertain-to a magnitude.Logical formLearned from97 sentences. A tragedy can be for persons.Logical formLearned from97 sentences. A tragedy can be unimaginable.Logical formLearned from97 sentences. A stranger can be to tragedy.Logical formLearned from96 sentences. A tragedy may pertain-to year.Logical formLearned from94 sentences. A tragedy can be sudden.Logical formLearned from93 sentences. A (death toll) can be from a tragedy.Logical formLearned from92 sentences. A string can be constituted-of-or-filled-with tragedies.Logical formLearned from92 sentences. Tragedies may pertain-to the past.Logical formLearned from92 sentences. A role can be in a tragedy.Logical formLearned from92 sentences. A tragedy can be environmental.Logical formLearned from89 sentences. A tragedy may be averted.Logical formLearned from89 sentences.