A valve may undergo a failure.Logical formLearned from49 sentences. Failures can be continued.Logical formLearned from49 sentences. A reason can be for failures.Logical formLearned from49 sentences. Memory may undergo a failure.Logical formLearned from49 sentences. Consequences may pertain-to failures.Logical formLearned from49 sentences. A (root cause) of an accident can be a failure.Logical formLearned from49 sentences. A (crop failure) can be widespread.Logical formLearned from49 sentences. A failure can be inexcusable.Logical formLearned from49 sentences. A female may undergo failures.Logical formLearned from49 sentences. Duty may undergo a failure.Logical formLearned from49 sentences. A failure can be cardiopulmonary.Logical formLearned from49 sentences. (Heart failure) may be aged.Logical formLearned from49 sentences. Failures can be in a war.Logical formLearned from49 sentences. A failure may pertain-to a movie.Logical formLearned from49 sentences. A combination can be constituted-of-or-filled-with failures.Logical formLearned from49 sentences.