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 starts war against region 

Ex Output:
yes


Ex Input:
sentence1:award_winner has advantage over employer sentence1:award_winner is winning over employer 

Ex Output:
yes


Ex Input:
sentence1:person is wife of person sentence1:person is being married to person 

Ex Output:

yes