A loser can be useless.Logical formLearned from9 sentences. Tools can be useless.Logical formLearned from9 sentences. A present can be useless.Logical formLearned from9 sentences. A result can be useless.Logical formLearned from9 sentences. Parents can be useless.Logical formLearned from9 sentences. A metric can be useless.Logical formLearned from9 sentences. A therapy can be useless.Logical formLearned from9 sentences. A load can be useless.Logical formLearned from9 sentences. Muscles can be useless.Logical formLearned from9 sentences. Employees can be useless.Logical formLearned from9 sentences. A precaution can be useless.Logical formLearned from9 sentences. A coin can be useless.Logical formLearned from9 sentences. A (guard hair) can be useless.Logical formLearned from9 sentences. A guide can be useless.Logical formLearned from9 sentences. A world-city can be useless.Logical formLearned from9 sentences.