A story may pertain-to a tragedy.Logical formLearned from82 sentences. A tragedy can be serious.Logical formLearned from81 sentences. A part may pertain-to a tragedy.Logical formLearned from80 sentences. Circumstances may pertain-to a tragedy.Logical formLearned from80 sentences. A tragedy can be preventable.Logical formLearned from80 sentences. Tragedies may pertain-to a female.Logical formLearned from79 sentences. A tragedy may pertain-to yesterday.Logical formLearned from78 sentences. Survivors may pertain-to a tragedy.Logical formLearned from78 sentences. Tragedy may be averted.Logical formLearned from77 sentences. Tragedies can be horrible.Logical formLearned from75 sentences. A death can be a tragedy.Logical formLearned from74 sentences. A breakthrough may be enabled by tragedy.Logical formLearned from74 sentences. A tragedy can be shocking.Logical formLearned from74 sentences. A tragedy can be for a person.Logical formLearned from74 sentences. A tragedy may begin.Logical formLearned from74 sentences.