(Trade unions) may undergo a grouping.Logical formLearned from13 sentences. Unions may understand that something-is-the-case.Logical formLearned from13 sentences. A business may pertain-to an union.Logical formLearned from13 sentences. Unions can be illegitimate.Logical formLearned from13 sentences. (Labor unions) may be opposed.Logical formLearned from13 sentences. An (union leader) may pertain-to coca-growers.Logical formLearned from13 sentences. Unions may suspend a strike.Logical formLearned from13 sentences. Tradition of harm to unions can be grounds.Logical formLearned from13 sentences. Harm can be to unions.Logical formLearned from13 sentences. Unions may protest measures.Logical formLearned from13 sentences. A (trade union leader) may rough_up by protesters.Logical formLearned from13 sentences. Some unions may hold a demonstration.Logical formLearned from13 sentences. (Union leaders) may express concern.Logical formLearned from13 sentences. A worker may pertain-to an union.Logical formLearned from13 sentences. Calls may pertain-to unions.Logical formLearned from13 sentences.