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: "Marco Hietala is a member of a band that was formed when?" whose answer is 1996.
Each document should contain about 30 words, and these documents should contain useful information.

Query: formation year of Nightwish
Useful Output:

Doc 1: It was initially created to be a folky acoustic act instead of a metal band. · Bandleader/lead composer/keyboardist Tuomas Holopainen's first
Doc 2: Chaoszine has decided to start new series on the YouTube Channel focusing mostly on Finnish band's and their history.
Doc 3: Nightwish (Finland) – Yesterwynde (album). Being an analyst by profession I did a little research before going down the latest Nightwish rabbit
Doc 4: I've heard her perform some of the old Nightwish song and that was stunning!! I hope the collaboration in the coming years will be creative. 11
Doc 5: The idea of Nightwish was "born" in July 1996 at midnight when Tuomas was spending a night with his friends around a campfire. The first three