Question: Which location is in Shanxi: Yuci District or Fengzhen?
Context: Chahar Right Front Banner (Mongolian: ᠴᠠᠬᠠᠷ ᠪᠠᠷᠠᠭᠤᠨ ᠭᠠᠷᠤᠨ ᠡᠮᠦᠨᠡᠳᠦ ᠬᠣᠰᠢᠭᠤ ; Цахар баруун гарын өмнөд хошуу; "Čaqar Baraɣun Ɣarun Emünedü qosiɣu"; ) is a Banner of Inner Mongolia, People's Republic of China, surrounding Jining District and bordering Xinghe County to the east, Fengzhen City to the south, Zhuozi County to the west, and Chahar Right Back Banner to the north.  It is under the administration of Ulaan Chab City.  Its most important settlement is Tuguiwula, where Tuguiwula Railway Station is located. Linfen is a prefecture-level city in southern Shanxi province, People's Republic of China.  It is situated along the banks of the Fen River.  It has an area of 20275 km2 and according to the 2010 Census, a population of 4,316,612 inhabitants of which 944,050 live in the built-up (or metro) area made up of Yaodu urban district.  GDP of Linfen ranked second in Shanxi Province It was known as Pingyang ( ) during the Spring and Autumn period.  In 2006, the American Blacksmith Institute listed Linfen as one of the ten most polluted cities in the world. Fengzhen (Mongolian: ; Chinese: 丰镇 "Fēngzhèn") is a county-level city within Ulaan Chab prefecture of Inner Mongolia in the China. Yuci District () is a district in Jinzhong, Shanxi, China. Taigu () is a county of Shanxi province, China under the administration of Jinzhong City.  It is administratively into three town-level entities (Mingxing 明星镇, Hucun 胡村镇, and Fancun 范村镇), and six township-level entities (Houcheng 侯城乡, Beiwang 北汪乡, Shuixiu 水秀乡, Yangyi 阳邑乡, Xiaobai 小白乡, and Rencun 任村乡).  Taigu is linked to nearby Yuci in Jinzhong by rail via the Taigu Railway Stop. Xinghe County (Mongolian: ᠰᠢᠩᠾᠧ ᠰᠢᠶᠠᠨ "Siŋhė siyan", Шинхэ шянь; ) is a county of south-central Inner Mongolia, People's Republic of China, bordering the provinces of Hebei to the east and Shanxi to the south.  It is under the administration of Ulaan Chab City, and is situated on the China National Highway 110 between Ulaan Chab and Zhangjiakou in Hebei province.  Bordering county-level divisions include Fengzhen City to the southwest, Chahar Right Front Banner to the west, Chahar Right Back Banner to the northwest, and Shangdu County to the north. The Datong–Puzhou or Tongpu Railway (), is a major trunkline railroad in northern China, and the main axial railway of Shanxi Province.  The railway is located entirely within Shanxi and diagonally bisects the province from Datong in the northeast to Fenglingdu, near the village of Puzhou, in the southwest corner.  The line is named after Datong and Puzhou, and has a total length of 865 km .  The line is often referred to by its northern and southern halves with Taiyuan, the provincial capital as the midpoint.  Southern Tongpu Railway from Taiyuan to Fenglingdu is 513 km in length and was built from 1933 to 1935.  The Northern Tongpu Railway, from Datong to Taiyuan is 351 km in length and was built from 1933 to 1940.  Major cities and towns along route include Datong, Huairen, Shuozhou, Ningwu, Yuanping, Xinzhou, Taiyuan, Yuci, Taigu, Qi County, Pingyao, Huozhou, Hongdong, Linfen, Houma and Fenglingdu. Qiao's Grand Courtyard is a 2006 Chinese historical television series.  The series is set during the late Qing Dynasty and chronicles the life of Shanxi financier, businessman and philanthropist Qiao Zhiyong (1818―1907), with artistic license applied.  Part of the series was shot at Qiao's Compound, which was Qiao Zhiyong's ancestral home at Qi County, Shanxi (it was also the chief location for Zhang Yimou's 1991 film "Raise the Red Lantern"). The Taiyuan–Jiaozuo or Taijiao Railway (), is a major trunkline railroad in northern China.  The railway is named after its terminal cities, Taiyuan in Shanxi Province and Jiaozuo in Henan Province.  The line, 434 km in length, lies mainly in Shanxi, running from Taiyuan in the center of the province to Jincheng in the southeast corner.  Jiaozuo is just across the southern border from Shanxi in northern Henan.  The Taijiao Railway was built from 1970 to 1978.  Major cities and towns along route include Taiyuan, Yuci, Jinzhong, Changzhi and Jincheng. Liangcheng County (Mongolian: ᠯᠢᠶᠠᠩᠴᠠᠩ ᠰᠢᠶᠠᠨ Лиыанчан сиыан "Liyaŋčaŋ siyan"; ) is a county of south-central Inner Mongolia, People's Republic of China, bounded by Shanxi province to the south.  It is under the administration of Ulaan Chab city, and borders Fengzhen City to the east, Zhuozi County to the north, and the regional capital of Hohhot to the west.
Answer: Yuci District