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 has a greater area, Hegang or Pulandian District?" whose answer is Hegang.
Each document should contain about 30 words, and these documents should contain useful information.

Query: area of Hegang
Useful Output:

Doc 1: The research was conducted in Hegang, which is located in the northeastern part of Heilongjiang Province, China (Figure 1). The city has six districts and two
Doc 2: The research was conducted in Hegang, which is located in the northeastern part of Heilongjiang Province, China (Figure 1). The city has six districts and two
Doc 3: The rust-belt city of Hegang in China's northeastern Heilongjiang province has been an unlikely hotspot of social and economic news this year.
Doc 4: Chinese Name: 鹤岗 (hè gǎng) Population: 995,000. Area: 15,000 square kilometers (5,791 square miles) Location: in the northeast of
Doc 5: Location: Xinhua, Dongshan District, Hegang Prefecture, Heilongjiang Province, China; Coordinates: 47.0963053, 130.2989674 (exact); Status