You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What vegetable originating near the Beijing region of China is used in Haejang-guk?" whose answer is Napa cabbage.
Each document should contain about 30 words, and these documents should contain useful information.

Query: vegetables commonly used in haejang-guk Beijing region
Useful Output:

Doc 1: Dumplings and zhajiangmian are traditional Chinese food, and are important to me because they represent my home and my culture.
Doc 2: 2. In a large bowl, combine doenjang, gochugaru, garlic, soy sauce and sesame oil. Add blanched cabbage, bean sprouts, zucchini, scallion and
Doc 3: Bok-jiri, laden with water celery, bean sprouts and daikon radish, is the preferred version for those seeking to chase their hangover as it is
Doc 4: Doenjang, a condiment usually produced from soybeans and salt, has also been consumed as a health food with anti-obesity, anti-diabetes, anti-
Doc 5: Bean sprouts are said to rid the body of acetaldehyde, a chemical that causes hangovers. Haejangguk is so popular that just about every