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".
Input: Bulgarian: , , , ., English: Needless to say, pesticides play a key role in preventing diseases and plagues of pests, but chemical pesticides also pollute the environment and can be harmful to health.
Output:
no