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 game was produced first, Guess Who? or Catan?" whose answer is Guess Who?.
Each document should contain about 30 words, and these documents should contain useful information.

Query: release year of Guess Who?
Useful Output:

Doc 1: Released in 1979, Guess Who? from Milton Bradley is a variation of the classic game of 20 Questions – a spoken parlor game that rose to popularity in the 19th
Doc 2:  released as a single (backed by "Lightfoot"), in their native Canada  NEW These Eyes - The Guess Who {Stereo} 1969. 726K views · 2 years ago
Doc 3: Early years​​ In 1965 their cover of Johnny Kidd and the Pirates' “Shakin' All Over” was released to radio stations under the moniker “Guess Who?
Doc 4: Celebrating 53 years of Rockin'! Released in 1972, this album is packed with energy and showcases the authentic sound of The Guess Who. 更多.
Doc 5: Premiering on March 25, 2005, the movie starred comedic powerhouse Bernie Mac alongside Ashton Kutcher, offering a playful and modern spin on