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: "The bec de corbin and Lucerne hammer were both popular in medieval Europe, but the Lucerne hammer was particularly popular in what European country during the 15th to 17th centuries?" whose answer is Switzerland.
Each document should contain about 30 words, and these documents should contain useful information.

Query: popularity of Lucerne hammer in 15th to 17th century Europe
Useful Output:

Doc 1:  Lucerne hammer, a remarkable weapon from the late fourteenth century that played a significant role on the battlefields of medieval Europe
Doc 2: They were very popular in Eastern Europe where this sword has Islamic origins.  Instead of a blade like the halberd, the Lucerne Hammer had a
Doc 3: Its ease of use made it a popular weapon among those with little skill in archery. It was also famously used by Genoese mercenaries, who were a
Doc 4: Military Fork: A weaponized pitchfork popular in France, Germany, and Italy from the 15th–19th centuries, the military fork consisted of just
Doc 5: It was popular in Europe in the 16th and 17th centuries. Surviving examples have a variety of head forms but there are two main variants, one with the side