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: powiedzmy że zbiór B składa się z liczb 1, 7 i 18  
 English: Let's say the set B is composed of 1, 7, and 18 

Ex Output:
yes


Ex Input:
Polish: wszystkie głowy podwajając ich ilość, więc  
 English: all the heads thus doubling your number, well, 

Ex Output:
yes


Ex Input:
Polish: Jedna z grup istot żywych staje ponad inną 
 English: But of course, if I multiplied the inverse matrix times the

Ex Output:

no