question: What news company does the opponent of Chris Koster in 2012 work as contributor for?
answer: CNN
context: Title: Chris Koster (musician)
  Passage: Chris Koster is a Canadian rock singer, songwriter, and musician.
  Title: Missouri attorney general election, 2012
  Passage: The Missouri attorney general election of 2012 was held on November 6, 2012, alongside the presidential and gubernatorial elections.  The current Missouri Attorney General Chris Koster, a Democrat, won re-election for a second full term against Republican attorney Ed Martin.
  Title: Michael R. Gibbons
  Passage: Michael R. Gibbons is a former Republican member of the Missouri Senate, representing the 15th District from 2001-2009.  He served as "President pro tempore".  Previously he was a member of the Missouri House of Representatives from 1993 through 2000.  In 2008 he ran for Missouri Attorney General, losing to the Democratic nominee Chris Koster.
  Title: Ed Martin (Missouri politician)
  Passage: Edward Robert Martin Jr. is an American politician and attorney from the state of Missouri.  He is president of Phyllis Schlafly Eagles, and a CNN contributor.
  Title: Israeli News Company
  Passage: Israeli News Company (Hebrew: חֵבְרָת הַחדָשוֹת הישראלית‎ - "Hevrat HaHadashot HaYisra'elit"), which is shortly called "The News Company" ("חברת החדשות" - Hevrat HaHadashot) and also known as חדשות ערוץ 2 lit. " [Israeli] channel 2 news", or חדשות 2 lit.  "News 2") is an Israeli company producing the Prime time news program on the Israeli commercial Channel 2, and most of its current affairs and news programs and items for that commercial channel.
  Title: Roxbury News
  Passage: The Roxbury News is an independent video news company based in Harrisburg, Pennsylvania.  The company is best known for producing news videos covering various city council and school board meetings, as well as Pennsylvania political and governmental events.
  Title: Chris Koster
  Passage: Chris Koster (born August 31, 1964) is an American lawyer who served as the 41st Attorney General of Missouri from 2009 to 2017.  Before he was elected attorney general, he had served in the Missouri Senate since 2005 representing the 31st Senatorial District as a Republican until August 1, 2007, when he switched to the Democratic Party.
  Title: Hawaiian News Company
  Passage: The Hawaiian News Company was a printer, publisher and bookbinder in Hawaii.  It had offices in Honolulu in the Young Building on Bishop Street, and on Merchant Street.  It was the only representatives in Hawaii of the American Type Founders Company.  The company provided services, such as book binding, and sold products, such as printing devices.  It carried paper stock for billheads, noteheads, commercial bond, news, cover, book, cardboard, as well as envelopes, society stationery and cards.  New books arrived by steamer.  The magazine and general news department carried a variety of titles, with subscriptions available for magazines published in the United States, Canada or Europe.  In addition, the company sold musical instruments, sheet music, and records.
  Title: Northern News Services
  Passage: Northern News Services (NNSL) is a news company based in Yellowknife, Northwest Territories with approximately 60 employees.  It is one of the few remaining independent newspapers in Canada, producing all-original content with little to no reliance on syndicated news.  NNSL publishes seven different papers weekly: "Kivalliq News", "Inuvik Drum", "Dehcho Drum", "Yellowknifer" (Wednesday and Friday editions), "News/North" ("Northwest Territories News/North" and "Nunavut News/North").
  Title: NowThis News
  Passage: NowThis News is a left-leaning digital news company that primarily distributes its content to mobile devices and social platforms.  It was founded by Huffington Post co-founder and former chairman Kenneth Lerer and former Huffington Post CEO Eric Hippeau.  Bedrocket founder Brian Bedol, Oak Investment Partners Managing Partner Fred Harman and Nikhil Kalghatgi are investors and board members.  Co-Founder Hippeau said, "The idea came as Ken and I were tossing around thoughts in mobile news.  It was evident that there was no video news, breaking news, that was created in video format just for mobile devices".
citations: Missouri attorney general election, 2012 Ed Martin (Missouri politician)