A strike may be called by a (trade union).Logical formLearned from15 sentences. An union may want an increase.Logical formLearned from15 sentences. (Trade unions) may undergo involvement.Logical formLearned from15 sentences. An union can be weak.Logical formLearned from15 sentences. Unions can be at some levels.Logical formLearned from15 sentences. Union can be for a country.Logical formLearned from15 sentences. A choice may pertain-to an union.Logical formLearned from15 sentences. List of (national rugby union players) can be a list of persons.Logical formLearned from15 sentences. An (union player) can be for a country.Logical formLearned from15 sentences. Secretary may pertain-to a (trade union).Logical formLearned from15 sentences. A male can be an (union footballer) of 1880s.Logical formLearned from15 sentences. A (rugby union tournament) can be international.Logical formLearned from15 sentences. A male may convert from an (union code).Logical formLearned from15 sentences. President may pertain-to a new union.Logical formLearned from15 sentences. Union may undergo a development.Logical formLearned from15 sentences.