A line can be fruitless.Logical formLearned from7 sentences. Dialogue can be fruitless.Logical formLearned from7 sentences. A journey can be fruitless.Logical formLearned from7 sentences. Lines can be fruitless.Logical formLearned from7 sentences. A business can be fruitless.Logical formLearned from7 sentences. Discussions can be fruitless.Logical formLearned from7 sentences. A digging can be fruitless.Logical formLearned from7 sentences. Violence can be fruitless.Logical formLearned from7 sentences. (Truce talks) can be fruitless.Logical formLearned from7 sentences. An approach can be fruitless.Logical formLearned from7 sentences. A search of a mall may prove fruitless.Logical formLearned from7 sentences. Arrests can be fruitless.Logical formLearned from7 sentences. A mediation may prove fruitless.Logical formLearned from7 sentences. (Trade negotiations) can be fruitless.Logical formLearned from7 sentences. A lobbying can be fruitless.Logical formLearned from7 sentences.