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 inflicting on region sentence1:region is being at war with region 

Ex Output:
no


Ex Input:
sentence1: is campaigning in location sentence1: is heading to location 

Ex Output:
yes


Ex Input:
sentence1:organization is unveiling at time.recurring_event sentence1:organization is introducing at time.recurring_event 

Ex Output:

yes