Teacher:In this task, you are given a set of context paragraph and some supporting facts to answer a question. Your task is to generate answer for given question based on set of context paragraphs and supporting facts.
Teacher: Now, understand the problem? Solve this instance: Context_1 : Cangwu County is a county of Guangxi, China. It is under the administration of Wuzhou city. Context_2 : The Macheng NO.1 High School(),of which predecessor is Macheng County Higher Primary School(),was rebuilt from Tingzhou the City South Examination Hall()in 1905by Qu Zihou(,18511911),the Qing Dynasty's former Speaker of the Macheng County Counciland Director of Eduction,is a noted and key high school in Hubei Province. Context_3 : Teng County or Tengxian () is a county of eastern Guangxi, China. It is under the administration of Wuzhou City. , it had a population of 930,000 residing in an area of 3943 km2 . Context_4 : Wuzhou Changzhoudao Airport () (IATA: WUZ,ICAO: ZGWZ) is an airport serving the city of Wuzhou in Guangxi Zhuang Autonomous Region, China. A new airport, Wuzhou Xijiang Airport, is being constructed to replace Changzhoudao Airport. It is expected to open in 2017. Context_5 : Cenxi () is a county-level city under the administration of Wuzhou City, in the east of Guangxi, People's Republic of China. Context_6 : Changzhou District () is a district of Guangxi, China. It is under the administration of Wuzhou city. Context_7 : Wanxiu District is a district of Guangxi, China. It is under the administration of Wuzhou city. Context_8 : Dieshan District is a district of Wuzhou city, Guangxi, China. Context_9 : Mengshan County () is a county under the administration of Wuzhou City in northeastern Guangxi, China. Its seat is located in Mengshan Town. Context_10 : Macheng () is a city in northeastern Hubei province, People's Republic of China, bordering the provinces of Henan to the north and Anhui to the northeast. It is a county-level city under the administration of Huanggang City and abuts the south side of the Dabie Mountains. The city's administrative area covers about 3600 km2 , and includes some 700 villages and small towns. Total population was 1.2 million at the last census. fact_1 : Macheng () is a city in northeastern Hubei province, People's Republic of China, bordering the provinces of Henan to the north and Anhui to the northeast. fact_2 : It is a county-level city under the administration of Huanggang City and abuts the south side of the Dabie Mountains. fact_3 : Cenxi () is a county-level city under the administration of Wuzhou City, in the east of Guangxi, People's Republic of China. Question: Which city is closest to Wuzhou City, Macheng or Cenxi?
Student:
Cenxi