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 German supergroup created by the vocalist of the band Edguy released "Angel of Babylon" in 2010?" whose answer is Avantasia.
Each document should contain about 30 words, and these documents should contain useful information.

Query: German supergroup "Angel of Babylon" 2010
Useful Output:

Doc 1:  Angel of Babylon. Avantasia is a German supergroup metal opera project created by Tobias Sammet, vocalist of the band Edguy. It has been
Doc 2:  2010's The Wicked Symphony and Angel of Babylon releases. The man can sing and the man can write, there's no denying it. Therefore it's
Doc 3: The Angel of Babylon has a new version of Promised Land. Saying this as someone that loves Michael Kiske: it wasn't one of his good songs
Doc 4: Avantasia » Angel of Babylon · Power metalMelodic metalSymphonic metalMetalAvantasia. no tags found. Avantasia is a German supergroup metal opera project
Doc 5: So here we have The Wicked Symphony, one of two new albums released this week by Avantasia, the brainchild of one Tobias Sammet (Angel of Babylon being the