Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
Q: Context: Belgorod (Russian: ; IPA: (blrt)) is a city and the administrative center of Belgorod Oblast, Russia, located on the Seversky Donets River just 40 kilometers (25 mi) north of the border with Ukraine.
Question: Which is the body of water by Belgorod?
A:
seversky donets river