A disk may fail.Logical formLearned from62 sentences. A marriage may fail.Logical formLearned from62 sentences. A person may fail.Logical formLearned from62 sentences. A machine may fail.Logical formLearned from62 sentences. A courage may fail a male.Logical formLearned from61 sentences. Persons may fail in a mission.Logical formLearned from61 sentences. An approach may fail.Logical formLearned from61 sentences. Programs may fail.Logical formLearned from61 sentences. Negotiators may fail.Logical formLearned from61 sentences. A mission may fail.Logical formLearned from61 sentences. Schemes may fail.Logical formLearned from60 sentences. A president may fail.Logical formLearned from60 sentences. A relationship may fail.Logical formLearned from60 sentences. A game may fail.Logical formLearned from60 sentences. Best efforts may fail.Logical formLearned from60 sentences.