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".

Input: Consider Input: Polish: jest istotą matematyki  
 English: is the very essence of mathematics 

Output: yes


Input: Consider Input: Polish: i jesteś przekonany, że kurs akcji wzrośnie  
 English: and you're convinced that the stock price will go up 

Output: yes


Input: Consider Input: Polish: W kapitaliźmie mamy oczywiście podział klasowy:  
 English: So I could do that.


Output: no