Question: What region is Tom Pepper's city of birth located?

full_context: Document 1: BitTorrent (company): BitTorrent, Inc., (renamed to Rainberry, Inc. in 2017) headquartered in San Francisco, California, is a privately held American company that is responsible for the ongoing development of the BitTorrent peer-to-peer protocol, as well as the ongoing development of µTorrent and BitTorrent Mainline, two clients for that protocol. Files transferred using the BitTorrent protocol constitute a significant slice of all Internet traffic. At its peak, 170 million people used the protocol every month, according to the company’s website. The company was founded on September 22, 2004 by Bram Cohen and Ashwin Navin. In 2018, the company was acquired by cryptocurrency startup TRON, and Bram Cohen left the company.
Document 2: Tom Truscott: Tom Truscott is an American computer scientist best known for creating Usenet with Jim Ellis, when both were graduate students at Duke University. He is also a member of ACM, IEEE, and Sigma Xi. One of his first endeavors into computers was writing a computer chess program and then later working on a global optimizer for C at Bell Labs. This computer chess program competed in multiple computer chess tournaments such as the Toronto chess tournament in 1977 (2nd place) and the Linz tournament in 1980 (3rd place). Today, Truscott works on tools that analyze software as a software developer for the SAS Institute.
Document 3: MP3: In November 1997, the website mp3.com was offering thousands of MP3s created by independent artists for free. The small size of MP3 files enabled widespread peer-to-peer file sharing of music ripped from CDs, which would have previously been nearly impossible. The first large peer-to-peer filesharing network, Napster, was launched in 1999.
Document 4: Kalona, Iowa: Kalona is a city in Washington County, Iowa, United States. It is part of the Iowa City, Iowa Metropolitan Statistical Area. The population was 2,363 at the 2010 census. Kalona is the second largest city in Washington County.
Document 5: SmoothWall: Released in August 2000, Smoothwall GPL was developed by Lawrence Manning and Richard Morrell to provide a quick and easy - to - use solution to the problem of sharing their ISDN connections with the rest of their LAN. Created using Red Hat Linux, Smoothwall GPL originally had two simple functions: control the modem to dial and hang up, and to route TCP / IP packets from the LAN to the Internet connection, and back again. The LAN was hidden from the public network by NAT, applied using ipchains.
Document 6: Colo, Iowa: Colo is a city in Story County, Iowa, United States. The population was 876 at the 2010 census. It is part of the Ames, Iowa Metropolitan Statistical Area, which is a part of the larger Ames-Boone, Iowa Combined Statistical Area.
Document 7: Bram Cohen: Bram Cohen (born October 12, 1975) is an American computer programmer, best known as the author of the peer-to-peer (P2P) BitTorrent protocol, as well as the first file sharing program to use the protocol, also known as BitTorrent. He is also the co-founder of CodeCon and organizer of the San Francisco Bay Area P2P-hackers meeting, and was the co-author of Codeville.
Document 8: Corydon, Iowa: Corydon is a city in Wayne County, Iowa, United States. The population was 1,585 in the 2010 census, a decline from 1,591 in the 2000 census. It is the county seat of Wayne County.
Document 9: Des Moines metropolitan area: The Des Moines metropolitan area, officially known as the Des Moines -- West Des Moines, IA Metropolitan Statistical Area (MSA), consists of five counties in central Iowa, United States: Polk, Dallas, Warren, Madison, and Guthrie. The 2010 census population of these counties was 569,633, and the 2017 estimated population was 645,911.
Document 10: MP3: In the second half of '90s, MP3 files began to spread on the Internet. The popularity of MP3s began to rise rapidly with the advent of Nullsoft's audio player Winamp, released in 1997. In 1998, the first portable solid state digital audio player MPMan, developed by SaeHan Information Systems which is headquartered in Seoul, South Korea, was released and the Rio PMP300 was sold afterwards in 1998, despite legal suppression efforts by the RIAA.
Document 11: Middletown, Iowa: Middletown is a city in Des Moines County, Iowa, United States. The population was 318 at the 2010 census. It is part of the Burlington, IA–IL Micropolitan Statistical Area.
Document 12: Saylorville, Iowa: Saylorville is a census-designated place (CDP) in Polk County, Iowa, United States. The population was 3,301 at the 2010 census. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area. The Saydel Community School District is located in this area. The unincorporated community of Marquisville is in this area.
Document 13: Indianola, Iowa: Indianola is a city in Warren County, Iowa, United States, 18 miles south of Des Moines, Iowa. The population was 14,782 at the 2010 census. It is the county seat of Warren County.
Document 14: Tom Hadfield: Tom Hadfield (born 1982 in Wakefield, England) created Soccernet, a sports Internet company, with his father, Greg Hadfield, when he was 12 years old. Soccernet was later sold to ESPN for $40 million when he was 17 years old. Two years later, he and his father were able to raise millions of dollars to launch the education website Schoolsnet.com. Tom Hadfield founded his latest site in 2009, AeroDesigns, Inc after graduating from Harvard University, and now acts as its Chief Executive Officer.
Document 15: Tom Pepper: Tom Pepper (born August 24, 1975 in Des Moines, Iowa) is a computer programmer best known for his collaboration with Justin Frankel on the invention of the Gnutella peer-to-peer system. He and Frankel co-founded Nullsoft, whose most popular program is Winamp, which was sold to AOL in May 1999. Afterwards, Pepper worked inside of AOL as the manager of SHOUTcast, an Internet streaming audio service, and wrote the software along with Stephen "Tag" Loomis and Frankel, before leaving in October, 2004. Pepper then worked on development at RAZZ, Inc. He continues to collaborate with Frankel on independent projects like Ninjam.
ground_truth: Warren County
sub_queries: Tom Pepper >> place of birth Answer: Des Moines
Des Moines >> located in the administrative territorial entity Answer: Warren County