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: "the flash season 4 episode 19 air date?" whose answer is April 24, 2018.
Each document should contain about 30 words, and these documents should contain useful information.

Query: The Flash season 4 episode 19 air date
Useful Output:

Doc 1: This week's episode of The Flash offers more action and intrigue than previous installments, but there still seems to be a lack of real
Doc 2: Barry's decision to send Nora home creates strife with Iris, while Caitlin's father returns to create a twisted family reunion.
Doc 3: The Flash season 4 continues tonight with episode 16, but how many episodes are left? Here's a guide for the fourth season of the CW and DC Comics series.
Doc 4: Episode 19 of The Flash season four will air on Tuesday, April 24 in the US. Fury Rogue is the title of episode 19, which will then be released on Amazon Prime.
Doc 5: The Flash season 3 episode 19 will not air on 4 April: Return date and future Barry spoilers. Barry will run into the future to save Iris