Employees can be (union members).Logical formLearned from20 sentences. A male may become president of an union.Logical formLearned from20 sentences. An union can be registered.Logical formLearned from20 sentences. Unions can be in a US-city.Logical formLearned from20 sentences. A group can be constituted-of-or-filled-with (trade unions).Logical formLearned from20 sentences. An union may be opposed.Logical formLearned from20 sentences. An union can be fruitful.Logical formLearned from20 sentences. A request may pertain-to unions.Logical formLearned from20 sentences. Unions can be informal.Logical formLearned from20 sentences. A (trade union movement) may undergo a development.Logical formLearned from20 sentences. A (trade union) can be recognised.Logical formLearned from20 sentences. A (trade union) may pertain-to a person.Logical formLearned from20 sentences. Powers may pertain-to an union.Logical formLearned from20 sentences. Unions can be successful.Logical formLearned from20 sentences. An union may face.Logical formLearned from20 sentences.