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".

Ex Input:
sentence1:region is firing at region sentence1:region is going to war with region 

Ex Output:
yes


Ex Input:
sentence1:military_combatant is having control of location sentence1:location is being occupied by military_combatant 

Ex Output:
yes


Ex Input:
sentence1:region is ceding to location sentence1:location wrests from region 

Ex Output:

no