Equipment can be faulty.Logical formLearned from12 sentences. Headlights can be faulty.Logical formLearned from12 sentences. A basis can be faulty.Logical formLearned from12 sentences. A gear can be faulty.Logical formLearned from12 sentences. A (school bell) can be faulty.Logical formLearned from12 sentences. A radar can be faulty.Logical formLearned from12 sentences. (Hip implants) can be faulty.Logical formLearned from12 sentences. A radiator can be faulty.Logical formLearned from12 sentences. An electrical switch can be faulty.Logical formLearned from11 sentences. Torpedoes can be faulty.Logical formLearned from11 sentences. A transmitter can be faulty.Logical formLearned from11 sentences. An intonation can be faulty.Logical formLearned from11 sentences. Laws can be faulty.Logical formLearned from11 sentences. Messages can be faulty.Logical formLearned from11 sentences. A condition can be faulty.Logical formLearned from11 sentences.