In this task, you will be given two sentences sentence1 and sentence2. You should decide whether the second sentence is entailed(agreed) by the first sentence. If it does entail, answer "yes", else answer "no".

Input: Consider Input: sentence1:computer_software is trademark of employer sentence1:employer is having version of computer_software 

Output: no


Input: Consider Input: sentence1:location is enemy of region sentence1:location is facing  region 

Output: no


Input: Consider Input: sentence1:location is preparing for war with region sentence1:region is fighting  location 


Output: yes