An iterator may fail.Logical formLearned from19 sentences. A transition may fail.Logical formLearned from19 sentences. An ability may fail.Logical formLearned from19 sentences. Alternatives may fail.Logical formLearned from19 sentences. A ping may fail.Logical formLearned from19 sentences. A task may fail.Logical formLearned from19 sentences. Hearts may fail.Logical formLearned from19 sentences. A person may fail in school.Logical formLearned from19 sentences. A fight may fail.Logical formLearned from19 sentences. A person may fail at a task.Logical formLearned from19 sentences. A leader may fail.Logical formLearned from19 sentences. Courts may fail.Logical formLearned from19 sentences. A female may fail a female.Logical formLearned from19 sentences. Work may fail.Logical formLearned from19 sentences. Acts may fail.Logical formLearned from19 sentences.