Deyang () is a prefecture-level city of Sichuan province, People's Republic of China.
 Deyang is a wealthy, mostly industrial city, with the Erzhong Heavy Machinery Company (中国二重 ), Dongfang Electrical Company (东方电机 ), and the high-tech industry contributing to its economy.
 It had a population of around 3,810,000 in 2004 and an area of 5818 km2 .
Heilongjiang () is a province of the People's Republic of China.
 Located in the northeastern part of the country, Heilongjiang is bordered by Jilin to the south and Inner Mongolia to the west.
 It also shares a China–Russia border with Russia to the north and east.
 The capital and the largest city of the province is Harbin.
 Among Chinese provincial level Administrative divisions, Heilongjiang is the 6th largest by total area and the 15th most populous.
Yushu () is a county-level city under the jurisdiction of Changchun, the capital of Jilin province, People's Republic of China.
 It is more than 140 km to the northeast of central Changchun, and around 100 km south of Harbin.
 The name of the place means "Elm Tree".
 The northernmost county-level division of Changchun, it borders Dehui to the southwest as well as the prefecture-level division of Harbin (Heilongjiang) to the northeast.
Dehui () is a county-level city under the jurisdiction of Changchun, the capital of Jilin province, People's Republic of China, located in the middle of the Songliao Plain.
 It has a total population of 906,000 and a rural population of 753,000.
 Composed of 10 towns, 4 townships and 4 subdistricts, under which there are 308 villages, it is around 80 km north-northeast of central Changchun.
 It borders Yushu to the northeast, Jiutai to the south, Kuancheng District to the southwest, Nong'an County to the west, as well as the prefecture-level cities of Jilin to the southeast and Songyuan to the northwest.

Question: Yushu, Jilin and Deyang, are located in which country?
Answer: People's Republic of China