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".

Example Input: Polish: i kiedy się pomylisz  
 English: and when you make a mistake and 
Example Output: yes

Example Input: Polish: Dlatego, współczesna wersja komunizmu,  
 English: So let's see what we want to do.
Example Output: no

Example Input: Polish: Związek Radziecki, nie współczesna Rosja  
 English: reduced row echelon form.
Example Output:
no