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 was served seven months in prison after Sir Oliver Popplewell found him guilty of perjury?" whose answer is Jonathan Aitken.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Who was served seven months in prison after Sir Oliver Popplewell found him guilty of perjury?
Useful Output:

Doc 1: He thinks Aitken, who pleaded guilty to perjury, was "jolly lucky" to get off with an 18-month sentence. "If he'd succeeded, he would have
Doc 2: In mediæval times, a person found guilty of perjury might be branded on the cheek or the forehead with the letter P. From 1697, anyone who received parish
Doc 3:  perjury, and was widely reported for asking "What is Linford's lunchbox?" during a case over which he was presiding, brought by Linford Christie. He played
Doc 4: The case collapsed in 1997 when it emerged that Aitken had lied about his hotel bill in Paris; he was subsequently imprisoned for perjury. The
Doc 5: Presiding over Linford Christie's much-publicised libel action against John McVicar in 1998, he piped up with faux-naïveté and to the court's delight: “What