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: "who won the wwe universal championship at greatest royal rumble?" whose answer is Braun Strowman.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who won the wwe universal championship at greatest royal rumble
Useful Output:

Doc 1: Roman Reigns vs Brock Lesnar (c) - Universal Championship match. Lesnar wins after Roman spears him out of the cage and Lesnar hit the ground
Doc 2: Roman Reigns once again failed to capture the WWE Universal Championship after losing to Brock Lesnar in controversial fashion,
Doc 3: WWE news: Braun Strowman wins Greatest Royal Rumble and could get Universal title match · BRAUN STROWMAN made history tonight at the Greatest
Doc 4:  WWE Championship.  WWE GREATEST ROYAL RUMBLE RESULTS. Bruan Strowman won the Greatest Royal Rumble match. Universal Champion Brock Lesnar DEF.
Doc 5: Bray Wyatt and Matt Hardy's twisted journey to tag team greatness culminated here with a championship victory over Sheamus and Cesaro. While the