In this task, you are given a sentence in Polish language and its corresponding English translation. Here, your job is to output label "yes" if the translation is correct, otherwise output "no".

[EX Q]: Polish: i później ją sprzedałeś.  
 English: and then you sell the stock. 
[EX A]: yes

[EX Q]: Polish: Ludzie piszą całe doktoraty poświęcone takim rzeczom.  
 English: We are the Earthlings.
[EX A]: no

[EX Q]: Polish: złota i innego metalu, czego dowiadujemy się  
 English: of gold and other materials, and we know 
[EX A]:
yes