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".

Example Input: sentence1:organization is acquiring  business_operation sentence1:business_operation is being bought by organization 
Example Output: yes

Example Input: sentence1:award_winner is adding to computer_software sentence1:award_winner is having version of computer_software 
Example Output: no

Example Input: sentence1:military_combatant is being at war with region sentence1:region is ally with military_combatant 
Example Output:
no