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: "how many episodes are in series 4 of shetland?" whose answer is 6.
Each document should contain about 30 words, and these documents should contain useful information.

Query: series 4 episodes Shetland
Useful Output:

Doc 1: Shetland S4|E1 Recap: "stab at strangulation" · So here's what we have: · Malone has been released from prison and denies killing Lizzie Kilmuir.
Doc 2: Shetland returns for a fourth season and sees DI Perez and the team reopen a twenty-three year old cold case. Year: 2018. Shetland S4 E1. E1 • Episode 1.
Doc 3: Share your videos with friends, family, and the world.
Doc 4: Episode 5  After crofter Jo Halley is attacked, Jimmy believes it is because she saw Sally talk to a person of interest in the murder case. Whilst two mainland
Doc 5: Episode 6. All eyes are on Lisa Friel, until a shocking accusation turns the case on its head. Contains some upsetting scenes.