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".

Input: Consider Input: sentence1:region is nation in location sentence1:region is country in location 

Output: yes


Input: Consider Input: sentence1:location is being attacked by location sentence1:location is threat to location 

Output: yes


Input: Consider Input: sentence1:book_author is establishing  employer sentence1:employer is created by book_author 


Output: yes