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: "when did northern ireland and southern ireland separate?" whose answer is 3 May 1921.
Each document should contain about 30 words, and these documents should contain useful information.

Query: separation of northern ireland and southern ireland
Useful Output:

Doc 1: In 03 May 1921, the Partition of Ireland divided Ireland into Southern and Northern Ireland, each self-governing entities. To cut a long
Doc 2: Why Are Northern And Southern Ireland Separate? In this informative video, we will take a closer look at the historical context that led to
Doc 3: The island of Ireland is divided between the Republic of Ireland and the United Kingdom which controls the north. But given that the Irish
Doc 4: This resource examines Northern Ireland's recent history, illustrating what happens after conflict ends—and what societal challenges are left in
Doc 5: The 1920 Government of Ireland Act created two separate entities: Northern and Southern Ireland. The bill's original intention was to keep