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".

sentence1:computer_software is trademark of organization sentence1:organization is updating  computer_software 
no

sentence1:person is senator from region sentence1:person is Senator from region 
yes

sentence1:organization is acquiring  business_operation sentence1:organization is purchasing  business_operation 

yes