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: "Nickelodeon has which sister network, airing as a pan-European digital channel?" whose answer is Nickelodeon Junior.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Nickelodeon sister network pan-European digital channel
Useful Output:

Doc 1: Nickelodeon has been available in Sweden since 1996 when a pan-Scandinavian version was launched on the analogue Viasat platform.
Doc 2: Nickelodeon Schweiz (branded as Nick Schweiz since 28 June 2017) is a Swiss German-language pay television channel centred towards children.
Doc 3: [9] The channel primarily airs animated programming. The channel initially launched on 17 September 1993 as a larger pan-European feed, serving the UK market
Doc 4: Nickelodeon Europe (Short: Nick) is a cable and satellite TV network. The Pan-European version, known as Nickelodeon, was launched on November 1998.
Doc 5: The Pan-European version, known as Nickelodeon airs a selection of programming from Nickelodeon in the USA and local shows from Nickelodeon in the UK, Ireland,