Information:  - Nagano has impressive highland areas, including most of the Kita-Alps, Ch-Alps, and Minami-Alps, which extend into the neighbouring prefectures. In addition to its natural scenic beauty and rich history, Nagano was host to the 1998 Winter Olympics, which gained the prefecture international recognition as a world-class winter sport destination, and a Shinkansen line to Tokyo.  - National Route 142 is a national highway of Japan connecting Karuizawa , Nagano and Shimosuwa , Nagano in Japan , with a total length of 77.3 km ( 48.03 mi ) .  - The Sea of Okhotsk is a marginal sea of the western Pacific Ocean, lying between the Kamchatka Peninsula on the east, the Kuril Islands on the southeast, the island of Hokkaido to the south, the island of Sakhalin along the west, and a long stretch of eastern Siberian coast (the Shantar Sea) along the west and north. The northeast corner is the Shelikhov Gulf. The sea is named after Okhotsk, the first Russian settlement in the Far East.  - Japan ("Nippon" or "Nihon" ; formally "" or "Nihon-koku", means "State of Japan") is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, It is lying off the eastern coast of the Asia Mainland (east of China, Korea, Russia) and stretching from the Sea of Okhotsk in the north to the East China Sea and near Taiwan in the southwest.   - Korea is a historical state in East Asia, since 1945 divided into two distinct sovereign states: North Korea (officially the "Democratic People's Republic of Korea") and South Korea (officially the "Republic of Korea"). Located on the Korean Peninsula, Korea is bordered by China to the northwest and Russia to the northeast. It is separated from Japan to the east by the Korea Strait and the East Sea.  - Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara.  - Geography. Karuizawa is located in eastern Nagano Prefecture, bordered by Gunma Prefecture to the north, east and south. The town is located on an elevated plain at the foot of Mount Asama, one of Japan's most active volcanoes. The mountain is classed as a Category A active volcano. A small eruption was detected in June 2015, a more significant eruption spewing hot rocks and a plume of ash occurred in February 2015. Mt. Asama's most destructive eruption in recent recorded history took place in 1783, when over 1,000 were killed. The volcano is actively monitored by scientists and climbing close to the summit is prohibited.  - Geography. The lake is the source of the Tenry River. It ranks 24th in lake water surface area in Japan.  - China, officially the People's Republic of China (PRC), is a unitary sovereign state in East Asia. With a population of over 1.381 billion, it is the world's most populous country. The state is governed by the Communist Party of China, and its capital is Beijing. It exercises jurisdiction over 22 provinces, five autonomous regions, four direct-controlled municipalities (Beijing, Tianjin, Shanghai, and Chongqing), and two mostly self-governing special administrative regions (Hong Kong and Macau), and claims sovereignty over Taiwan. The country's major urban areas include Shanghai, Guangzhou, Beijing, Chongqing, Shenzhen, Tianjin and Hong Kong. China is a great power and a major regional power within Asia, and has been characterized as a potential superpower.  - Geology. Mount Asama sits at the conjunction of the Izu-Bonin-Mariana Arc and the Northeastern Japan Arc. The mountain is built up from non-alkali mafic and pyroclastic volcanic rocks dating from the Late Pleistocene to the Holocene. The main rock type is andesite and dacite.  - The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south and is bounded by Asia and Australia in the west and the Americas in the east.  - Asia is Earth's largest and most populous continent, located primarily in the eastern and northern hemispheres and sharing the continental landmass of Eurasia with the continent of Europe. Asia covers an area of , about 30% of Earth's total land area and 8.7% of the Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Asia is notable for not only its overall large size and population, but also dense and large settlements as well as vast barely populated regions within the continent of 4.4 billion people.  - History. Japan was without horses until around the fifth century CE. The ancient province of Gunma was a center of the horsebreeding and trading activities for the newly immigrated continental peoples. The arrival of horses and the remains of horse-tackle coincides with the arrival of a large migration from the mainland. From this point forward, the horse became a vital part of Japanese military maneuvers, quickly displacing the older Yayoi tradition of fighting on foot.  - Geography. Shimosuwa is located in central Nagano Prefecture, approximately 50 kilometers from the prefectural capital of Nagano city and 200 kilometers from Tokyo. The town is bordered on the south by Lake Suwa. The town has an altitude of 760 meters at the town center, and is 82% forested.  - Taiwan, officially the Republic of China (ROC), is a state in East Asia. Neighbors include China (officially the People's Republic of China, abbreviated as PRC) to the west, Japan to the northeast, and the Philippines to the south. Taiwan is the most populous state that is not a member of the United Nations, and the one with the largest economy.    After reading the paragraphs above, we are interested in knowing the entity with which 'japan national route 142' exhibits the relationship of 'located in the administrative territorial entity'. Find the answer from the choices below.  Choices: - australia  - beijing  - center  - central  - china  - chongqing  - chūō  - earth  - east  - guangzhou  - gulf  - highland  - japan  - kamchatka peninsula  - karuizawa  - macau  - mainland  - nagano  - nagano prefecture  - north  - north korea  - northwest  - novosibirsk  - of  - pacific ocean  - petersburg  - philippines  - river  - russia  - saint petersburg  - samara  - shanghai  - south  - southwest  - summit  - taiwan  - west
Answer:
nagano prefecture