In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Q: Haejang-guk ( ) or hangover soup refers to all kinds of "guk" or soup eaten as a hangover cure in Korean cuisine. It means "soup to chase a hangover" and is also called "sulguk" (). It usually consists of dried Napa cabbage, vegetables and meat in a hearty beef broth. One type of haejangguk, Seonjiguk, includes sliced congealed ox blood (similar to black pudding) and another type, Sundaeguk includes a kind of blood sausage made with intestine stuffed with pig's blood and other ingredients. Question: What vegetable originating near the Beijing region of China is used in Haejang-guk? Answer: Napa cabbage
A:
Haejangguk or hangover soup refers to all kinds of guk or soup eaten as a hangover cure in Korean cuisine.