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: Но щом директивата влезе в сила, въздушното пръскане ще се извършва само когато няма реални алтернативни решения за борбата с вредителите, за да се осигури нужното ниво на защита на околната среда., English: However, once the directive comes into force, these spray treatments will only be applied when there are no viable alternative solutions to combating the pests, in order to provide the environment with an adequate level of protection.
Output: 


Output: yes