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: "MTX Mototrax is a video game depicting a sport that evolved from motorcycle trials competitions held where?" whose answer is United Kingdom.
Each document should contain about 30 words, and these documents should contain useful information.

Query: origin of motorcycle trials competitions
Useful Output:

Doc 1: The seven trials bikes that changed the course of Classic Motorcycle trials history up to the first of the Mono bikes the Yamaha Majesty that had its first win
Doc 2: It began as a wintertime sport for European enthusiasts, who tested themselves by tracing ancient Roman roads. These riders negotiated various
Doc 3: Motorcycle trials, which began in Scotland in 1910, are especially popular in the United Kingdom and Spain, and also go by the name observed
Doc 4: While the mimicking of motorcycle trials riding on a bicycle can be sporadically dated back to the 1940's, recorded events were held in Germany since 1974, it
Doc 5: Trial bikes have evolved to become extremely competitive and specialized, which has meant that they are only usable for increasingly extreme