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: "Denethor appears in a fictional novel that began as a sequel to what novel?" whose answer is The Hobbit.
Each document should contain about 30 words, and these documents should contain useful information.

Query: When did The Lord of the Rings begin as a sequel to another novel
Useful Output:

Doc 1: The Lord of the Rings began life as a sequel to J.R.R. Tolkien's children's novel, The Hobbit, originally published in 1937. The book
Doc 2: What do you think about the LOTR series? Books? Films? Hard to compare? I started the First Lines and First Pages series in November 2017 as a
Doc 3: The Elven-smiths of Eregion began forging the Rings of Power around the year S.A. 1500. Celebrimbor made the Three Rings last in 1590, and he
Doc 4: Also included is the sequel Tolkien attempted to 'The Lord of the Rings', set during the reign of Aragorn's son, Eldarion, titled 'A New Shadow'
Doc 5: The novel, set in the Third Age of Middle-earth, formed a sequel to Tolkien's The Hobbit (1937) and was succeeded by his posthumous The