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].

[Q]: Verify if the sentiment of the following document towards the entity Nahas Angula is Negative .  Zhai said since China and Namibia forged diplomatic ties 20 years ago  bilateral relations had enjoyed a sound and smooth development with the continuous enhancement of political mutual trust and great achievements in cooperation.
[A]: no


[Q]: Verify if the sentiment of the following document towards the entity Michael Simon is Positive .  Simon kept in touch with the engineering team that had managed to make the most of limited computing power and turned to them again when Marton Anka  a Hungarian software engineer  approached him with the remote access software he had been selling out of his apartment.
[A]: yes


[Q]: Verify if the sentiment of the following document towards the entity Arnold Perry is Negative .  Perry  pleaded guilty in November to two counts of rape and one count of sexual battery.  His  plea deal called for a 25-year sentence.
[A]:
no