Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

Q: Tanner Roark  will take the mound with the Nationals facing elimination in Game 4. (Jeff Roberson/AP)
CHICAGO —  Tanner Roark  was born and raised in Wilmington  Ill.  which is southwest of Chicago  which means  he  grew up closer to Comiskey Park than to Wrigley Field. But geography didn’t impact baseball team allegiances in the  Roark  household.  He  grew up a die-hard Cubs fan like  his  mother and siblings  diverging from  his  father’s loyalty to the White Sox and the Cardinals.
“Growing up  yeah  there was always some trash-talking in the house between us and my dad ”  Roark  said.
On Tuesday  barring rain   Roark  will find himself on the mound at Wrigley Field  the ballpark he visited countless times as a fan  to face the Cubs. It won’t be his first start there; he has four on his résumé and appeared in another game out of the bullpen. But none of the previous outings carried the same weight Tuesday’s will place on Roark’s right arm: Game 4 of the National League Division Series with his Nationals facing elimination.
“It’s pretty surreal to pitch in Wrigley  and just the history that they have here and everything ”  Roark  said. “It’s very exciting  and I’m anxious to get out there.”
 Roark  hasn’t pitched since the Nationals’ regular season finale on Oct. 1  when  he  allowed two runs in an inning of relief against the Pirates  and  he  hasn’t started a game since Sept. 27.  He  lasted 4 2/3 innings that day  surrendering six runs on seven hits to the Phillies. But  Roark  was significantly better before the poor finish;  he  had posted a 3.39 ERA in 57 innings over  his  previous nine starts to rebound from an inconsistent four months after  his  stint with Team USA at the World Baseball Classic made for an unusual spring training.
“ Tanner  didn’t have many innings coming out of spring training  and that kind of got  him  behind the eight-ball  so to speak  because you know   he  didn’t have the innings ” Nationals Manager Dusty Baker said. “ He  was with the WBC and  he  didn’t pitch very much. And so things get in your head when you’re used to getting guys out and all of a sudden you’re not getting them out. So it’s a new season now for Tanner  brand-new season  and this is what people are going to remember you by.”
“ Tanner   you know  is a guy that you would like on your side if you’re in an alley and you’re in a fight  because you know  Tanner    he  has that warrior mentality ” Baker said. “ He  doesn’t make any excuses or alibis.  He  just goes out and pitches  and  this guy  has not had an easy road  you know  from the beginning to get here. We feel very comfortable with  Tanner  on the mound because you know  he ’s going to fight tooth and nail and do everything  he  can to win the ballgame for you.”
 Roark  recalled 300 people from Wilmington congregated in a section in right center field for  his  Wrigley Field debut in 2013.  He  doesn’t expect that again Tuesday.  He  hasn’t been hounded for tickets. Five relatives   his  wife  and their two children will be in attendance to watch  his  biggest game of  his  career.
“They are good about getting their own tickets ”  Roark  said  laughing. “Which is very good on  me . It’s a lot less stress that I have to worry about.”

A: Tanner Roark
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Q: Jessie Ware  "Glasshouse" (Interscope Records)
No doubt about it   Jessie Ware  can sing. The London-born singer-songwriter has a versatile voice that can whisper and soar against a musical palette drawing from soul  R&B  jazz and pop.
The 12 songs in the collection effectively showcase  Ware 's range. She can go from a murmur to a scream against a disco bassline in lead single "Midnight." She can croon soulfully on "Thinking About You." She can bathe the listener in a soothing balm on the lush "Stay Awake for Me."
In lyrics partly inspired by the birth of her first child last year   Ware  reflects on love and loss. It's not exactly Amy Winehouse-level soul baring but it delivers on the seductive  bossa nova-tinged "Selfish Love" ("Why do I do these things/I break you down just to get my way?")
 Ware  is clearly an artist with personality  but at times seems overwhelmed by the album's busy production. "Alone" is a catchy ballad honed to within an inch of its life. There's more freedom on "Your Domino " an appealing slice of Eurodisco fun.
The album is most effective when it slows down â as it does on the aptly named "Slow Me Down" and on "Hearts " which lets the emotion in  Ware 's voice shine through.

A: Jessie Ware
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Q: 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:
Chris Caldwell
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