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: "when does the 4th trials of apollo come out?" whose answer is Fall 2019.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when does the 4th trial of apollo come out
Useful Output:

Doc 1: Book four in Rick Riordan's best selling series is coming—on September 24th readers will get to dive back into Apollo's journey as he attempts
Doc 2: The Trials of Apollo (2016) , #4; Finished reading: 28 th July, 2021  The way the Arrow of Dodona has to spell out the identity of the silent
Doc 3: Author: Rick Riordan Rating: 5/5 Apollo and Meg enlist Camp Jupiter's help to take down two of the Roman Emperors. Spoilers ahead.
Doc 4: The fourth title in Rick Riordan's Trials of Apollo series - set in the funny, mythical and action-packed world of Percy Jackson.
Doc 5: Yes. Although it pains me to say he's a minor character in the Trials of Apollo, he did appear in the beginning and in the end of the series.