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: "Who was the man who won Irish Presidency and also led the introduction of the Constitution of Ireland?" whose answer is Éamon de Valera.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Who was the first president of Ireland?
Useful Output:

Doc 1: Douglas Hyde was a distinguished Gaelic scholar and writer and the first president of the Republic of Ireland (Éire).
Doc 2: Douglas Hyde became the first President of Ireland in 1938. He was a co-founder of Conradh na Gaeilge (The Gaelic League), a poet and a playwright.
Doc 3: List of presidents of Ireland ; 1, Douglas Hyde (1860–1949), Senator (1925, 1938), 25 June 1938 ; 2, Séan T. O'Kelly (1882–1966), Tánaiste (1932–1945), 25 June
Doc 4: The first president was Douglas Hyde, who was elected unopposed in 1938. This means that no one ran against him, so he won by default. The first president to be
Doc 5: Hyde was the first President of Ireland with one of the most influential cultural organizations in Ireland during that time.