Question: Are Xinxiang and Yongcheng both prefecture-level cities?

Context paragraphs:
Langfang: Langfang (), is a prefecture-level city of Hebei Province, which was known as Tianjin Prefecture until 1973.  Hebei province was renamed Langfang Prefecture after Tianjin became a municipality and finally upgraded into a prefecture-level city in 1988.  Langfang is located approximately midway between Beijing and Tianjin.  At the 2010 census, the population of Langfang was 4,358,839, of whom 868,066 lived in the built-up ("or metro") area made of Guangyang and Anci districts; its total area is around 6417.28 km² .  Langfang borders Baoding to the southwest, Cangzhou to the south (both prefecture-level cities of Hebei), Beijing to the north and Tianjin to the east.  Sanhe City and Dachang Hui County are now conurbated with Beijing, so that they form part of the same built-up area.  Langfang is the smallest prefecture-level city of Hebei Province by land area.

Yongcheng: Yongcheng () is a county-level city in Shangqiu, Henan, in the China.

Lu'an: Lu'an (), is a prefecture-level city in western Anhui province, People's Republic of China, bordering Henan to the northwest and Hubei to the southwest.  At the 2010 census, it had a total population of 5,612,590, whom 1,644,344 resided in the built-up area made of 2 urban districts.  Neighbouring prefecture-level cities are the provincial capital of Hefei to the east, Anqing to the south, Huanggang (Hubei) and Xinyang (Henan) to the west, and Huainan and Fuyang to the north.  Although the character "六 " (literally: "six") is normally pronounced "Liù", in this case it changes to "Lù" on account of the historical literary reading.

Greater Changsha Metropolitan Region: Greater Changsha Metropolitan Region or Changsha-Zhuzhou-Xiangtan City Cluster () is a large area in Hunan province, China, consisting of three prefecture-level cities of Changsha, Xiangtan and Zhuzhou, the place is the heavily urbanized region of Hunan and covers an area of 28,087 km.  It covers an area of 1,883 km in the urban area with 5.92 millions of popupation, GDP reaches CN￥ 568.37 billions(US$ 90.04 billions), GDP per capita is CN￥ 96,067(US$ 15,665), the core area of three cities (Changzhutan metropolis) has an area of 483.77 km in 2012.  On December 14, 2007, it was issued as Comprehensive Supporting Reform Trial Areas to build a resource conserving and environment friendly society by China NDRC.

Prefectures of the People's Republic of China: Prefectures, formally a kind of prefecture-level divisions as a term in the context of China, are used to refer to several unrelated political divisions in both ancient and modern China.  There are 333 prefecture-level divisions in China.  They include 17 prefectures and 283 prefecture-level cities.  Other than provincial level divisions, prefectural level divisions are not mentioned in the Chinese constitution.

Hongze District: Hongze () is a district (and former county) of the prefecture-level city of Huai'an in Jiangsu province, China.  Occupying the southeastern shores of Lake Hongze, it borders the prefecture-level cities of Suqian to the northwest and Yangzhou (briefly) to the east.

Xinxiang: Xinxiang (; postal: Sinsiang) is a prefecture-level city in northern Henan province, inland eastern China.

Qin-Lian Yue: Qin–Lian (Hamlim, 欽廉方言) is a southern branch of Yue Chinese spoken in the coastal part of Guangxi, which is represented by four traditional cities Qinzhou, Lianzhou, Lingshan and Fangcheng ("欽廉靈防") or by three modern prefecture-level cities Qinzhou, Beihai and Fangcheng ("欽北防").

Xinxiang–Yanzhou Railway: The Xinxiang–Yanzhou Railway or Xinyan Railway (), is a railroad in northern China between Xinxiang in Henan Province and Yanzhou in Shandong Province.  The line, 305 km in length and built in sections from 1911-1912, 1979-1980 and 1983-1985, serves as a major conduit for the shipment of coal from Shanxi Province.  Major cities and towns along route include Xinxiang, Heze, Jining and Yanzhou.

List of Chinese cities by life expectancy: This is a list of the cities of the People's Republic of China, including all direct-controlled municipalities, sub-provincial cities, prefecture-level cities, but excluding special administrative regions, in order of their life expectancy.

Supporting paragraphs: Xinxiang Yongcheng
Answer: no