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: "Which city that N2 runs through is a capital?" whose answer is Nkwanta.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Beijing N2 subway line capital
Useful Output:

Doc 1: Reading Comprehension CBSE Class 12 Passages, Exercises, Worksheets. Step 1: Skim once as rapidly as possible to determine the main idea before you look at the
Doc 2: Beijing has 26 subway lines linking airports, train stations  Line: Beixinqiao ↔ Dongzhimen ↔ Sanyuanqiao ↔ T3 ↔ T2 (Capital Airport)
Doc 3: Beijing has 27 subway lines in operation, including two airport express lines and two tram lines. Beijing Subway Planning Map 2025
Doc 4: Cement Market size is expected to be worth around USD 649.2 Bn by 2034, from USD 410.1 Bn in 2024, at a CAGR of 4.7%.
Doc 5: Beijing Subway Line 2 ; Line length, 23.1 ; Opening date, 20 September 1984 ; Line type, Rapid transit ; Total station, 18 Active Stations ; Terminals, Xizhimen ⇄