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 are the parents of the goddess the title of the final novel of the "Percy Jackson & the Olympians" series refers to?" whose answer is Cronus and Rhea.
Each document should contain about 30 words, and these documents should contain useful information.

Query: title of the final novel of the Percy Jackson & the Olympians series
Useful Output:

Doc 1: The Last Olympian. The Demigod Files. Percy Jackson's Greek Gods, illustrated by John Rocco. The Lightning Thief: The Graphic Novel. The Sea of Monsters: The
Doc 2: All year the half-bloods have been preparing for battle against the Titans, knowing the odds of victory are grim. Krono's army is stronger than ever,
Doc 3: The Trials of Apollo is the third and final series from the Percy Jackson world. This series follows the Greek God, Apollo, as he faces harsh
Doc 4: Percy Jackson and The Olympians. The Lightning Thief. The Sea of Monsters. The Titans Curse. The Battle of the Labyrinth. The Last Olympian ; The
Doc 5: The Percy Jackson and the Olympians end credits and his monster notebook hint at what's to come, so let's analyze the heck out of it!