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].
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Question: Chiefs OLB Justin Houston (50) and DL Chris Jones sack Broncos QB Trevor Siemian on Monday night. (Photo: Ed Zurga  AP)
KANSAS CITY  Mo. â  Justin Houston âs once-perfect team had lost consecutive games after a pair of uncharacteristic showings. The Kansas City Chiefs defense couldnât stop anybody  and the offense suddenly lost its effectiveness in the rushing department  which had served as a calling card during the team's 5-0 start.
 Houston   a seventh-year veteran and one of the longest-tenured Chiefs  looked around the locker room  diagnosed the problem and decided he had to speak up.
âIâm from a big family  so I understand there are times to follow  and there are times to lead. There are times to speak up â  Houston  told USA TODAY Sports after Monday night's 29-19 defeat of the Denver Broncos. âWe just werenât having fun.
And  most importantly to  Houston  and his teammates  the Chiefs had fun in the process.

Answer: Justin Houston


Question: Alabama Democratic U.S. Senate hopeful  Doug Jones  says  he  is a âright-to-liferâ once a baby is born  but â before then â  he  supports abortion up until the day of birth.
 Jones  told MSNBCâs MTP Daily host Chuck Todd:
When Todd asked him if he would not support legislation that banned late-term abortions   Jones  replied:
 Jones  faces Republican candidate Judge Roy Moore in a special election on December 12 to fill the Senate seat previously held by now-Attorney General Jeff Sessions.
 Doug Jones  clearly has no problem with the fact that the U.S. is only one of seven nations â alongside North Korea and China â to allow elective abortion on-demand after five months.  His  extremism puts  him  dramatically out of step with Alabama voters. Alabama is one of twenty states to take a stand against the brutality of late term abortions having approved a state limit in 2011. Polls consistently show that a large majority of Americans â women in higher numbers than men â support bringing our national laws into line with basic human decency  and the House will vote on this measure next week.  Jones  is out to impress the big abortion lobby but this does nothing for  his  chances against Judge Moore.

Answer: Doug Jones


Question: TOKYO (Reuters) - Bitcoin is likely to become a new asset class in its own right  such as gold or stocks  which can be traded by major investors and regulated  not simply a crypto-currency   Leo Melamed   Chairman Emeritus of CME Group (CME.O)  said on Tuesday.
FILE  PHOTO - Chicago Mercantile Exchange (CME) group's Chairman Emeritus Leo Melamed  speaks during an interview with Reuters in Tokyo June 30  2014. REUTERS/Yuya Shino
CME   the worldâs largest derivatives exchange   last week announced that  it  would launch the futures contract of bitcoin  marking a major step in the digital currencyâs path toward mainstream acceptance.
 Melamed  said  he  expects major investors to take part in bitcoin futures  which  the exchange  plans to start by the end of year.
âThatâs a very important step for bitcoinâs history... We will regulate  make bitcoin not wild  nor wilder. Weâll tame it into a regular type instrument of trade with rules â  Melamed  told Reuters in an interview.
The futures will allow investors to short-sell bitcoins  making two-way bets possible  a development that  he  expects will attract major institutional investors  not just speculators.
 Melamed  was elected chairman of the Chicago Mercantile Exchange in 1969.  He  moved to Chicago in  his  youth  having fled Nazi-occupied Poland with  his  family.
Melamedâs parents were among a small number of Jews to flee to Lithuania after Germany invaded their native town of Bialystok in Poland   he  said.
There   his  family obtained visas to Japan  thanks to a diplomat  Chiune Sugihara  who helped resettle thousands of refugees despite Tokyoâs policies at the time.

Answer:
Leo Melamed