TASK DEFINITION: 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".
PROBLEM: sentence1:region is being attacked by military_combatant sentence1:military_combatant starts war against region 

SOLUTION: yes

PROBLEM: sentence1:organization_founder is ally with region sentence1:organization_founder is pushing  region 

SOLUTION: no

PROBLEM: sentence1:region is being attacked by location sentence1:location wags war against region 

SOLUTION:
yes