A chairman may pertain-to a (trade union).Logical formLearned from18 sentences. An union may call on members.Logical formLearned from18 sentences. A (rugby union) can be against a country.Logical formLearned from18 sentences. An union may undergo a running.Logical formLearned from18 sentences. An accord can be with unions.Logical formLearned from18 sentences. Approval can be from an union.Logical formLearned from18 sentences. A victory can be for unions.Logical formLearned from18 sentences. A dialogue can be with unions.Logical formLearned from18 sentences. An agreement can be with (trade unions).Logical formLearned from18 sentences. Some unions may meet.Logical formLearned from18 sentences. An union may begin a strike.Logical formLearned from18 sentences. A head may pertain-to an industrial union.Logical formLearned from18 sentences. A constitutional amendment may ban unions.Logical formLearned from18 sentences. A state may allow civil unions.Logical formLearned from18 sentences. Representative may pertain-to an union.Logical formLearned from18 sentences.