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 Input:
Polish: Więc on widzi odwróconą wersję książki.  
 English: So he sees a flipped version of the book 

Ex Output:
yes


Ex Input:
Polish: matematyki w trakcie lekcji matematyki.  
 English: doing some real mathematics during your math class. 

Ex Output:
yes


Ex Input:
Polish: Lecz prawdą jest, że nie ma nic z tyłu.  
 English: Now the reality is, they're not back over here 

Ex Output:

yes