A left hand can be useless.Logical formLearned from2 sentences. An (ad campaign) can be useless.Logical formLearned from2 sentences. Advice may sound useless to persons.Logical formLearned from2 sentences. (Ventless heaters) can be useless.Logical formLearned from2 sentences. Counseling can be useless.Logical formLearned from2 sentences. A (thigh cream) can be useless.Logical formLearned from2 sentences. (Novelty items) can be useless.Logical formLearned from2 sentences. A (rule book) can be useless.Logical formLearned from2 sentences. The police may prove useless.Logical formLearned from2 sentences. Lands can be useless.Logical formLearned from2 sentences. Baseball can be useless to a person.Logical formLearned from2 sentences. A flashlight can be useless.Logical formLearned from2 sentences. A dam can be useless.Logical formLearned from2 sentences. A counselor can be useless.Logical formLearned from2 sentences. A symbolism can be useless.Logical formLearned from2 sentences.