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: "Roy "Pretty Boy" Shaw and Lenny "The Guv'nor" McLean were arch-rivals in what?" whose answer is boxing.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Roy "Pretty Boy" Shaw and Lenny "The Guv'nor" McLean rivals
Useful Output:

Doc 1: Roy Shaw ROY PRETTY BOY SHAW BRITISH HARD BASTARD FOR SURE  Shaw was best known for his infamous trilogy with arch-rival Lenny "The Guv'nor"
Doc 2: Roy " Pretty Boy" Shaw. Sev is sad to say  Shaw won and went on to take on his great rival, Lenny "The Guv'nor" McLean, whom he beat.
Doc 3:  Roy pretty boy Shaw twice to claim full status of "the guvnor".  Lenny McLean: The Tale of The Guv'nor | Documentary. Dark Sleuth Secrets
Doc 4: In his head, he was the “Guv'nor,” and the hardest man in Britain, not Roy “Pretty Boy” Shaw. Shaw was no mug. He was an East End hell
Doc 5: According to Shaw's autobiography, Pretty Boy  Shaw was best known for his infamous trilogy with arch-rival Lenny "The Guv'nor" McLean.