Labors can be painful.Logical formLearned from13 sentences. A (labor movement) may undergo a birth.Logical formLearned from13 sentences. A (labor force) can be militant.Logical formLearned from13 sentences. A decline can be in a (labor force).Logical formLearned from13 sentences. Forced labor can be in agriculture.Logical formLearned from13 sentences. A fraction may pertain-to a (labor force).Logical formLearned from13 sentences. A labor may pertain-to slaves.Logical formLearned from13 sentences. A (labor federation) can be militant.Logical formLearned from13 sentences. A (labor market) can be split.Logical formLearned from13 sentences. An union may file an unfair (labor practice) charge.Logical formLearned from13 sentences. A reliance can be on foreign labor.Logical formLearned from13 sentences. A male can be (labor union leader).Logical formLearned from13 sentences. Forced labor can be in mines.Logical formLearned from13 sentences. A (labor force) can be black.Logical formLearned from13 sentences. A labor can be dead.Logical formLearned from13 sentences.