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 was the anthem that Philips of Marnix likely wrote recognized as official?" whose answer is 1932.
Each document should contain about 30 words, and these documents should contain useful information.

Query: When was the anthem that Philips of Marnix likely wrote recognized as official?
Useful Output:

Doc 1: The current official version is the 1932 arrangement by Boer, when the “Wilhelmus” was recognized as the official national anthem. In
Doc 2:  Philips of Marnix, a writer, statesman and former mayor of Antwerp, or Dirck Coornhert, a politician and theologian, wrote the lyrics
Doc 3: Although "Wilhelmus" was not recognized as the official national anthem until 1932, it has always been popular with parts of the Dutch population and resurfaced
Doc 4: Surprisingly the Wilhelmus has only been recognized as the official national anthem in 1932. It superseded 'Wier Neerlands bloed in de ad'ren vloeit', of
Doc 5: The Dutch anthem (Wilhelmus), written by the rhetorician Willem De Gorter from Mechelen. He wrote numerous poems and she provided drawings