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]: ROUGH CUT ( NO REPORTER NARRATION ) U . S . Defense Secretary Jim Mattis on Tuesday played down an apparent split between the U . S . president and his top diplomat over outreach to North Korea   saying America ' s focus was still on finding a diplomatic solution to the dispute with Pyongyang . President Donald Trump   who has traded insults and threats with North Korean leader Kim Jong Un in recent weeks   said on  Sunday Secretary of State Rex Tillerson  was " wasting  his  time " trying to negotiate with North Korea over its nuclear weapons program .  Tillerson    during a trip to China on Saturday   said the United States had direct channels of communication with the North and was probing Pyongyang to see if it was interested in dialogue . He expressed hope for reducing tensions with North Korea   which is fast advancing toward its goal of developing a nuclear - tipped missile capable of hitting the U . S . mainland . " I do not see the divergence as strongly as some ... have interpreted it  " Mattis said . " President Trump ' s guidance to both Secretary Tillerson and me has been very clearly that we would ... pursue the diplomatic effort to include with the various initiatives with China  " Mattis told a Senate hearing . " I believe that Secretary Tillerson is accurately stating that we are probing for opportunities to talk with the North . All we ' re doing is probing . We ' re not talking with them   consistent with the president ' s dismay about not talking with them before the time is right ."
[A]: Rex Tillerson


[Q]: Ben Zobrist? Kyle Schwarber? Kris Bryant? Anthony Rizzo? The Cubs donât seem worried  as they scored 822 runs last season despite Schwarberâs struggles  eventually dropping him from that spot. Assuming they donât acquire a leadoff specialist  theyâll likely rely on a combination of players seeking to provide the production Dexter Fowler supplied in 2016.
The Cubs had minus-9 defensive runs saved at that position last year. Without a strikeout-heavy rotation  defense takes on a greater role. Schwarber has slimmed down to help his agility. Ian Happ has been prone to taking curious routes to the ball.  Ben Zobrist  isnât fast  but  he âs dependable.
 Zobrist  turns 37 on May 26  and  he  played in only 128 games in 2017 because of wrist and back injuries. Manager Joe Maddon faces the delicate balance of getting  Zobrist  ready without taxing  him . Happ is lined up to receive more playing time to preserve Zobristâs health.
Cubs' Ben Zobrist swinging for a rebound after injury-plagued season Â»
[A]: Ben Zobrist


[Q]: The European Commission remembered Edward Kennedy on Wednesday as "one of the most popular and effective legislators in American history" who also sought to help the developing world.
"The commission is very sad to hear of the death of senator Kennedy " said the EU's executive branch in a statement a few hours after his death at the age of 77 was announced by his family.
"He was a selfless public servant who fought for the rights of all Americans and sought to help people in developing countries across the globe " it said.
"He will be remembered as one of the most popular and effective legislators in American history."
[A]:
Edward Kennedy