Given a sentence, an entity and its sentiment towards the entity, verify if it is the correct sentiment towards the entity. Answer should be yes or no. Note that URLs in the text have been replaced with [Link].

Verify if the sentiment of the following document towards the entity Akayed Ullah is Negative . Authorities identified the attacker as 27-year-old Akayed Ullah. Monday's explosion injured him  slightly wounded three other people and sent commuters fleeing in terror through a subway corridor near Times Square.
yes

Verify if the sentiment of the following document towards the entity George Papandreou is Positive . Socialist Prime Minister George Papandreou on Wednesday stressed that position had not changed.
no

Verify if the sentiment of the following document towards the entity Sanchez is Negative . I first wrote about disability and policing for The Nation in 2013. Iâm not sure anything has improved since then. The people who have been working on this the longest  people like the lawyer Talila Lewis and the organization HEARD and artist and activist Leroy Moore  remain unfunded  even as organizations pour money into trainings for cops. But police donât need training to choose not to shoot folks like Sanchez. They just have to stop treating noncompliance as a justification for escalation.

yes