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 Canadian mine hasn't been confirmed to exist, Beanland Mine or Lost Lemon Mine?" whose answer is The Lost Lemon Mine.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Lost Lemon Mine existence
Useful Output:

Doc 1: Named in honour of the storied Lost Lemon, this lowly coal mine dates from the first half of the 1930s. It's situated by a typical prairie lake
Doc 2: 128 pages : 22 cm First ed. has title: Goldrush : the search for the Lost Lemon Mine Includes bibliographical references and index
Doc 3: The lost lemon mine expeditions and thereby tragedies are happening roughly every 25 years!! Just like our yellowjackets adult time line being
Doc 4: Once upon a time, two men by the name of Frank Lemon and Blackjack were panning for gold in Crowsnest Pass. It was the 1870s,
Doc 5: It was back in 1870 or so, when a group of prospectors came into Canada, from Montana, to search for gold along the North Saskatchewan River.