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   location 's countrysentence1:region is situated in location 

SOLUTION: yes

PROBLEM: sentence1:organization_founder is preventing  location sentence1:organization_founder is coming to location 

SOLUTION: no

PROBLEM: sentence1:award_winner is announcing at conferences.conference_series sentence1:award_winner is introducing at conferences.conference_series 

SOLUTION:
yes