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].

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.

A: yes
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Q: Verify if the sentiment of the following document towards the entity John F. Kennedy is Neutral . BOSTON (Reuters) - More than half a century after  U.S. President John F. Kennedy  was struck down by an assassinâs bullet in Dallas  Texas  the United States is due on Thursday to release the final files on the investigation into the killing that rattled a nation.
FILE PHOTO:  President John F. Kennedy in an undated photograph courtesy of the John F. Kennedy Presidential Library and Museum . REUTERS/JFK Presidential Library and Museum/Handout/File Photo via REUTERS
Academics who have studied  Kennedy âs slaying on Nov. 22  1963  said they expected the final batch of files to offer no major new details on why Lee Harvey Oswald gunned down the first and only Irish-American Roman Catholic to hold the office.
They also feared that the final batch of more than 5 million total pages on the  Kennedy  assassination held in the National Archives will do little to quell long-held conspiracy theories that the 46-year-old presidentâs killing was organized by the Mafia  by Cuba  or a cabal of rogue agents.
Thousands of books  articles  TV shows and films have explored the idea that  Kennedy âs assassination was the result of an elaborate conspiracy. None have produced conclusive proof that Oswald  who was shot dead a day after killing Kennedy  worked with anyone else  though they retain a powerful cultural currency.
âMy students are really skeptical that Oswald was the lone assassin â said Patrick Maney  a professor of history at Boston College. âItâs hard to get our minds around this  that someone like a loner  a loser  could on his own have murdered  Kennedy  and changed the course of world history. But thatâs where the evidence is.â
FILE PHOTO:  U.S. President John F. Kennedy  signs a proclamation for the interdiction of the delivery of offensive weapons to Cuba during the Cuban missile crisis  at the White House in Washington  DC October 23  1962. Cecil Stoughton/The White House/John F. Kennedy Presidential Library/File Photo via REUTERS
In 1992  Congress ordered that all records relating to the investigation into  Kennedy âs death should be open to the public  and set a final deadline of Oct. 26  2017 for the entire set to be made public.
 Kennedy âs assassination was the first in a string of politically motivated killings  including those of  his  brother Robert F. Kennedy and civil rights leader Martin Luther King Jr.  that stunned the United States during the turbulent 1960s.  He  remains one of the most admired U.S. presidents.

A: yes
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Q: Verify if the sentiment of the following document towards the entity Luca Maestri is Neutral . "Tax reform will allow us to pursue a more optimal capital structure for  our company " Chief Financial Officer Luca Maestri  said Thursday on the earnings call. "Our current net cash position is $163 billion and given the increased financial and operational flexibility from the access to our foreign cash  we are targeting to become approximately net cash neutral over time."
The executive noted that  the company  returned nearly 100 percent of  its  free cash flow during the past several years to investors.
Maestri said Apple will not make any changes to its mergers and acquisition strategy  saying  the company  will continue to look "at all sizes" and aims to "accelerate our product road maps" from  its  acquisitions.
"What  Luca 's saying is not cash equals zero.  He 's saying there's an equal amount of cash and debt and that they balance to zero "  he  said.

A:
no
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