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".

Example Input: sentence1:organization_founder is President of location sentence1:organization_founder is   location 's President
Example Output: yes

Example Input: sentence1:region is being occupied by military_combatant sentence1:region is gaining from military_combatant 
Example Output: no

Example Input: sentence1:employer is submitting to book_author sentence1:employer is presenting to book_author 
Example Output:
yes