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".

[Q]: sentence1:person*politician is serving a mayor of region sentence1:person*politician is Mayor of region 
[A]: yes


[Q]: sentence1:region is being attacked by military_combatant sentence1:military_combatant launches war against region 
[A]: yes


[Q]: sentence1:location launches invasion of region sentence1:region is cooperating with location 
[A]:
no