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]: Bernie Sanders helps celebrate free City College tuition . 
With all the fervor of a revival meeting , about 700 people at City College of San Francisco today cheered U.S. Sen. Bernie Sanders and the supervisor who helped make tuition at the college free to city residents . 
I want to use my life to help other people , like Bernie ," Headrick said .
[A]: Bernie Sanders


[Q]: Two recent books look at the very human (sometimes all-too-human) process of trying to make sense of the known universe:  The Un-Discovered Islands: An Archipelago of Myths and Mysteries  Phantoms and Fakes  by Malachy Tallack  and The Planet Factory: Exoplanets and the Search for a Second Earth  by Elizabeth Tasker .  They 're so stylistically and scientifically disparate as to seem unrelated  but reading  them  in close succession makes for something greater than the sum of its parts â a joint atlas of human guesses in a world that seems destined to confound us.
 Elizabeth Tasker  knows all about that; The Planet Factory is all about the formation of worlds humanity might never clap eyes on. And if you're hoping for definitive answers about how things work closer to home  think again;  Tasker 's very clear that the scientific method is as often about being proven wrong. "The problem (and there is always a problem)" isn't just an aside on a particular theory  but a thesis for the field. This is a book about trying to map unknown seas in real time; the ghosts of the sailors peering into the dawn looking for Thule live in every telescopic survey.
The Planet Factory can feel intimidating; certainly you must come to it wanting to know everything there is to know about making planets  and hang in there as long as you can before the variables overwhelm you. ( Tasker  offers easy analogies by the handful  and while at first they may seem too easy  you'll appreciate them by the time you're trying to understand the optimum timing of planetary migration.)
The Planet Factory Exoplanets and the Search for a Second Earth by Elizabeth Tasker Hardcover  336 pages   purchase close overlay Buy Featured Book Your purchase helps support NPR programming. How?
[A]: Elizabeth Tasker


[Q]: CLEVELAND â The New York Yankees of the mid-to-late 1990s have acquired their own mythology. Derek Jeter and Mariano Rivera and Jorge Posada and the rest of the dynastic Yankees seem  through the lens of the present  to have emerged fully formed as a colossus.  Brian Cashman  has a different perspective  because  he  witnessed them come together. âThat team â  Cashman  said  âwas young  too  at one point.â
The common refrain has it that the current Yankees have arrived ahead of schedule. Maybe thatâs true in part. For  Cashman  and for the rest of the Yankees  both the Baby Bombers and ancient pinstripers such as CC Sabathia and Brett Gardner  they have arrived  period. Theyâre here  among the final four teams standing in a season flush with uncommonly great teams  with a sole expectation: While they have a chance  win the World Series.
â âArriving earlyâ implies some guarantee of arriving in the future â  Cashman  said. âIâve been around the block long enough to know  listen  you just seize the moment.â
The Yankees may have qualified for the playoffs as a wild card  but they are part of the raft of âsuperteams â to use  Cashman âs phrase  dominating the playoffs. The Yankees finished the season with the second-best run differential in baseball  behind only the Indians  and won 91 games.
The Yankees are cast in these playoffs as an upstart. They sold off Andrew Miller  Aroldis Chapman  Carlos Beltran and Brian McCann and shed Alex Rodriguez last season. But they re-signed Chapman in free agency  and when young stars Aaron Judge and Gary Sanchez led the Yankees to a strong start   Cashman  added reinforcements with aggression  dealing prospects for Todd Frazier  Tommy Kahnle and David Robertson.
[A]:
Brian Cashman