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: "Past Perfect Future Tense is the first solo album of Norwegian band a-ha's Magne Furuholmen,  better known to music fans by what stage name?" whose answer is Mags.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Magne Furuholmen stage name a-ha
Useful Output:

Doc 1: Magne is most known for his work with A-ha. He co-wrote many of the band's hit songs, including their most famous hit 'Take On Me'.
Doc 2: Magne Furuholmen is perhaps most widely known around the world as the man who wrote the most recognized synth-riff ever for A-ha's debut single Take on Me.
Doc 3: Also known by his stage name Mags, he is the keyboardist of the synthpop/rock band A-ha and co-wrote hits such as "Take On Me", "Stay on These
Doc 4: Furuholmen, better known to music fans by his stage name Mags, is the keyboardist of the synthpop/rock band A-ha, and co-wrote hits such as “
Doc 5: 5 Albums I Can't Live Without: Magne Furuholmen of A-ha · 5 Albums I Can't Live Without: · 1. Sea Change, Beck · 2. The Bends, Radiohead · 3. O,