Given a document, 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].

[EX Q]: Verify if the sentiment of the following document towards the entity Chris Caldwell is Neutral . These primes are exceedingly rare and sporadic  said Chris Caldwell  a professor of mathematics and statistics at the University of Tennessee at Martin  who studies prime numbers and has written a history of the Mersenne primes.
"Finding a prime is not going to change any theorems in mathematics  but this is a type of prime that has been interesting to mathematicians since several centuries before Christ "  Caldwell  said. Even the ancient Greek mathematician Euclid talked about what would later become the Mersenne primes  he said.
 Caldwell  added that the discovery was akin to breaking a land speed record.
The last few Mersenne primes have been closer to each other than the researchers expected   he  said.
The numbers seem to occur sporadically because researchers don't fully understand the pattern they follow   he  said. "So you expect in any process that appears random to have some close groupings of numbers. But  we  didn't expect to find another one so soon after the last one."
"In the long run   we  hope to use these data to predict how often these occur "  he  added.
[EX A]: yes

[EX Q]: Verify if the sentiment of the following document towards the entity Richard Sherman is Neutral . Richard Sherman  is not a fan of the NFL's injury reports.
Speaking with reporters on Wednesday   Sherman  who has been listed as questionable the past two weeks despite not missing a defensive snap for the Seahawks   said that the injury reports existed more for the people betting on the games than anyone else.
"I guess from what I understand the rule is for the gamblers  for Vegas  to make sure the odds and everything are what they are supposed to be  which is apparently what the league is concerned about when talking about injuries and things like that "  Sherman  said. "So maybe somebody should look into that  because I thought we weren't a gambling league and we were against all those things. But our injury report is specifically to make sure the gamblers get their odds right."
In response to  Sherman 's comments  the NFL put out a statement seemingly confirming  Sherman 's beliefs. However  the league counters the claim that they are for gambling  and instead suggesting that they are to protect the league from gambling.
 Sherman  added that  it  wasn't just people betting on games in Las Vegas that were beneficiaries of the NFL's injury reports. "Fantasy football  oh my God  " Sherman  said. "They are almost as bad as the gamblers."
While he was lighthearted by the end of the presser  it's striking to see a player call out the league for a policy as plainly as  Sherman  did in this case. You can watch  Sherman 's comments below.
The Seahawks head to Nashville on Sunday to take on the Tennessee Titans. Having not missed a game since 2011  fans can expect  Sherman  to play  regardless of what the injury report says on Sunday.
[EX A]: yes

[EX Q]: Verify if the sentiment of the following document towards the entity Vladimir Putin is Positive . Russian President Vladimir Putin  participates in a forum of regional and local media organized by the Russian Popular Front in Kaliningrad  Russia. (Alexei Druzhinin/Pool/EPA)
A day after unveiling dramatic new weapons — including a nuclear-powered cruise missile — that sparked talk of a return to Cold War tensions   Russian President Vladimir Putin  suggested that  he 'd reverse the collapse of the Soviet Union if  he  could.
 Putin 's comments on the 1991 collapse of the U.S.S.R. — which bound Russia and many of its neighbors while exerting influence in Eastern Europe and abroad for almost seven decades — came at a question-and-answer forum held Friday in Kaliningrad. Taking questions from the audience  the Russian leader was asked what event in his nation's history he would have liked to change.
 Putin  has been been leader of Russia in some form or another since 2000  making  him  the longest-serving Kremlin leader since Joseph Stalin. This week   Putin  used  his  annual address to announce a series of new weapon technologies that  he  dubbed "invincible " including nuclear-powered missiles that would be difficult for conventional missile defense systems to combat.
 Putin  is easily expected to win next weekend's election  with a poll conducted last week giving  him  almost 70 percent — almost 10 times the share of the vote of  his  nearest rival  a candidate from the Communist Party.
Despite  his  regret about the collapse of the Soviet Union   Putin  told the audience on Friday that  he  wouldn't want to live in any other period than the present. Asked about  his  dreams for the future   the Russian president  said: "I want our country to be successful  powerful  stable  balanced and looking ahead."
 Putin ’s new missiles could probably strike the U.S. The old ones could  too.
[EX A]:
yes