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 is the capital city of northern island?" whose answer is Belfast.
Each document should contain about 30 words, and these documents should contain useful information.

Query: capital city of Northern Ireland
Useful Output:

Doc 1: The capital of Northern Ireland is Belfast. Where is Northern Ireland? Northern Ireland is part of the countries forming the United Kingdom.
Doc 2: Collectively as the United Kingdom, it's London. Individually, it's London (England), Edinburgh (Scotland), and Belfast (Northern Ireland). Why
Doc 3: Belfast is the most populous city in Northern Ireland with some 640,000 residents and is the capital city of the country. It is known for its
Doc 4: Belfast, situated in county Antrim, is the capital city of Northern Ireland.  Outline map of Northern Ireland; main cities, towns, and villages
Doc 5: With only a weekend to explore Belfast, we decided to take a short walking tour of Belfast. As a former industrial powerhouse with a