Definition: In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.
Input: Passage: The Twin Cities area is the fifteenth-largest media market in the United States, as ranked by Nielsen Media Research. The state's other top markets are Fargo–Moorhead (118th nationally), Duluth–Superior (137th), Rochester–Mason City–Austin (152nd), and Mankato (200th).Broadcast television in Minnesota and the Upper Midwest started on April 27, 1948, when KSTP-TV began broadcasting. Hubbard Broadcasting, which owns KSTP, is now the only locally owned television company in Minnesota. Twin Cities CBS station WCCO-TV and FOX station KMSP-TV are owned-and-operated by their respective networks. There are 39 analog broadcast stations and 23 digital channels broadcast over Minnesota.
The four largest daily newspapers are the Star Tribune in Minneapolis, the Pioneer Press in Saint Paul, the Duluth News Tribune in Duluth, and the Post-Bulletin in Rochester. The Minnesota Daily is the largest student-run newspaper in the U.S. Sites offering daily news on the Web include The UpTake, MinnPost, the Twin Cities Daily Planet, business news site Finance and Commerce and Washington D.C.-based Minnesota Independent. Weeklies including City Pages and monthly publications such as Minnesota Monthly are available.
Two of the largest public radio networks, Minnesota Public Radio (MPR) and Public Radio International (PRI), are based in the state. MPR has the largest audience of any regional public radio network in the nation, broadcasting on 37 radio stations. PRI weekly provides more than 400 hours of programming to almost 800 affiliates. The state's oldest radio station, KUOM-AM, was launched in 1922 and is among the 10-oldest radio stations in the United States. The University of Minnesota-owned station is still on the air, and since 1993 broadcasts a college rock format. 
Question: What is the full name of the radio station that has the largest audience of any regional public radio network in the nation?

Minnesota Public Radio.