    Sentence 1: in Brazil, child street vendors with ittie oF no  schooiing dispiay sophisticated concepts of ciassification  and eduivaience as the resuit of buying candy from  wholesalers, pricing it with the hep of adults and  experienced peers, and bargaining with customers on  city streets.    Sentence 2: Some chiidren who buy and sel candy on  the street develop sophisticated concepts of ciassification  and equivalence.