An inability may pertain-to an union.Logical formLearned from13 sentences. Unions can be effective.Logical formLearned from13 sentences. (Union members) can be democratic.Logical formLearned from13 sentences. (Union members) can be in a country.Logical formLearned from13 sentences. A (labor union) may pertain-to a female.Logical formLearned from13 sentences. (Union workers) can be in a us-state.Logical formLearned from13 sentences. Ideas may pertain-to an union.Logical formLearned from13 sentences. An union may balk.Logical formLearned from13 sentences. An union may represent (baggage handlers).Logical formLearned from13 sentences. A (trade union leader) may pertain-to a country.Logical formLearned from13 sentences. Some unions may represent (flight attendants).Logical formLearned from13 sentences. An attempt can be by unions.Logical formLearned from13 sentences. A threat can be to an union.Logical formLearned from13 sentences. Backing can be from unions.Logical formLearned from13 sentences. An union may agree on a contract.Logical formLearned from13 sentences.