A person may pay for a labor.Logical formLearned from13 sentences. (Child labor) may persist.Logical formLearned from13 sentences. Variety can be constituted-of-or-filled-with (labor laws).Logical formLearned from13 sentences. A male may continue labors.Logical formLearned from13 sentences. Changes can be in (labor markets).Logical formLearned from13 sentences. Changes can be in (unit labor costs).Logical formLearned from13 sentences. (Labor rights) can be universal.Logical formLearned from13 sentences. A (labor organization) can be subordinate.Logical formLearned from13 sentences. Costs may pertain-to a labor.Logical formLearned from13 sentences. Thousands can be constituted-of-or-filled-with (labor union members).Logical formLearned from13 sentences. A representative can be constituted-of-or-filled-with labor.Logical formLearned from13 sentences. A labor may pertain-to men.Logical formLearned from13 sentences. A demand can be for (slave labor).Logical formLearned from13 sentences. A labor may pertain-to a child.Logical formLearned from13 sentences. A male can be (labor economist).Logical formLearned from13 sentences.