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 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.
yes

Verify if the sentiment of the following document towards the entity Haley Barbour is Positive . Transportation Security Administration spokeswoman Lisa Farbstein said a TSA officer working at an X-ray machine at a checkpoint at Jackson-Medgar Wiley Evers International Airport spotted a .38-caliber revolver  loaded with five bullets  in a passenger's carry-on bag. TSA contacted airport police  who arrested the passenger. The TSA would not release the passenger's name  but Farbstein confirmed it was a former governor  and  Barbour  confirmed to AP that it was he.
no

Verify if the sentiment of the following document towards the entity David Letterman is Neutral . Letterman joked about a near-collision involving Air Force One: "Thank God no one was injured  though a flight attendant was thrown from President Clinton's lap."

no