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: co znajdowało się w naczyniu.  
 English: was inside the vessel. 

Ex Output:
yes


Ex Input:
Polish: z punktu widzenia gospodarku już nie komunistyczna  
 English: 1 minus 2 times 0 is 1.

Ex Output:
no


Ex Input:
Polish: o funkcjach wykładniczych, ale masz trudności  
 English: exponential functions, but you're having 

Ex Output:

yes