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: "Which of the football league with which Rinjala Raherinaivo plays is the third tier of the Swiss football league system?" whose answer is Swiss Promotion League.
Each document should contain about 30 words, and these documents should contain useful information.

Query: tiers of swiss football league system
Useful Output:

Doc 1: The Swiss Challenge League consists of 10 teams, making it one of the smaller second divisions in Europe. Despite its size, the league is fiercely competitive.
Doc 2: The latest significant reform to a top-flight league structure comes in Switzerland, where the 20 clubs from the top two tiers of Swiss football
Doc 3: The Swiss Super League, the top tier of domestic club football, is set to expand to 12 clubs from the 2023-24 season, with a play-off system
Doc 4: After 22 games in regular season, top 6 and bottom 6 play another 10 games in distinct groups. The first & second of the first group play a
Doc 5: Tier 1: Super League; Tier 2: Challenge League; Tier 3: Promotion League; Tier 4: 1. Liga; Tier 5