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: majątek zawdzięczają swoim nowatorskim pomysłom,  
 English: inverse of the matrix.

Ex Output:
no


Ex Input:
Polish: Więc to obraz pozorny.  
 English: So it's a virtual image 

Ex Output:
yes


Ex Input:
Polish: dla przypomnienia dodam, że  
 English: Minus 1, 0, 1.

Ex Output:

no