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   region 's countrysentence1:region is country located in region 

Ex Output:
yes


Ex Input:
sentence1:region is located to border location sentence1:region is to border location 

Ex Output:
yes


Ex Input:
sentence1:person*politician is serving a governor of location sentence1:person*politician is   location 's governor

Ex Output:

yes