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 being attacked by military_combatant sentence1:military_combatant launches war against region 

Ex Output:
yes


Ex Input:
sentence1:region is going to invade region sentence1:region is being attacked by region 

Ex Output:
yes


Ex Input:
sentence1:location is exploiting  location sentence1:location is colonizing  location 

Ex Output:

yes