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:location launches invasion of location sentence1:location is attacking  location 

Ex Output:
yes


Ex Input:
sentence1:organization_founder is ending  employer sentence1:organization_founder is accusing  employer 

Ex Output:
no


Ex Input:
sentence1:employer is following  employer 's leadsentence1:employer has advantage over employer 

Ex Output:

yes