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:person*politician tells conference in location sentence1:person*politician is telling in location 

SOLUTION: yes

PROBLEM: sentence1:region is one of country in location sentence1:region is republic in location 

SOLUTION: no

PROBLEM: sentence1:region is being attacked by military_combatant sentence1:region is facing threat from military_combatant 

SOLUTION:
yes