A (gas canister) can be faulty.Logical formLearned from8 sentences. (Valve stems) can be faulty.Logical formLearned from8 sentences. A (battery charger) can be faulty.Logical formLearned from8 sentences. Boats can be faulty.Logical formLearned from8 sentences. Smoke can be faulty.Logical formLearned from8 sentences. A (fire alarm) can be faulty.Logical formLearned from8 sentences. An electrical transformer can be faulty.Logical formLearned from8 sentences. A fuel can be faulty.Logical formLearned from8 sentences. Electrical wires can be faulty.Logical formLearned from8 sentences. (Fuel valves) can be faulty.Logical formLearned from8 sentences. Phones can be faulty.Logical formLearned from8 sentences. (State deregulation laws) can be faulty.Logical formLearned from8 sentences. (Voting systems) can be faulty.Logical formLearned from8 sentences. A grip can be faulty.Logical formLearned from8 sentences. Economic forecasts can be faulty.Logical formLearned from8 sentences.