Definition: In this task, you are given a sentence in the Bulgarian language and corresponding English translation of this sentence. Here, your job is to generate label "yes" if translation is right, otherwise generate label "no".

Positive Example 1 -
Input: Bulgarian: Състав на Парламента: вж. протоколи, English: Membership of Parliament: see Minutes
Output: yes

Positive Example 2 -
Input: Bulgarian: Защо бяхме против еврото по онова време?, English: Why were we against the euro at that time?
Output: yes

Negative Example 1 -
Input: Bulgarian: Имахме две основни причини за това, English: This is the very problem which we are facing today.
Output: yes

Negative Example 2 -
Input: Bulgarian: Състав на Парламента: вж. протоколи, English: Membership of Parliament: see Minutes
Output: no

Now complete the following example -
Input: Bulgarian: Досега не съществуваше дефиниция за тях., English: Until now there has been no definition of these.
Output: 


Output: yes