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 Brazilian mixed martial artist and former UFC Middleweight Champion whose title streak ended after nearly 2,500 days did Luiz Carlos Dórea train?" whose answer is Anderson Silva.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Brazilian UFC Middleweight Champion with a title streak of nearly 2,500 days
Useful Output:

Doc 1: “The Spider” practically owned the UFC's middleweight division between 2006 and 2012 where he reigned as the champion for 2457 days.
Doc 2: Sean Strickland, in a thrilling showdown at UFC 293 in Sydney, Australia, claimed the middleweight championship by securing a Unanimous Decision victory.
Doc 3: 1 Anderson Silva​​ Having held the UFC Middleweight title for nearly 2500 consecutive days, Anderson Silva won 16 straight bouts in the company
Doc 4: Anthony "Lionheart" Smith (37-22-0) is a Pro MMA Fighter out of Omaha, Nebraska and the #25th ranked Top Light Heavyweight MMA fighter.
Doc 5: Anderson Silva owns the longest UFC title reign in UFC history. The Brazilian combat sports icon became champion when he defeated Rich Franklin