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: "What nationality was the inventor of the first vacuum pump?" whose answer is German.
Each document should contain about 30 words, and these documents should contain useful information.

Query: nationality of otto von guericke
Useful Output:

Doc 1: Beginnings. Otto von Guericke was born into an affluent family on November 30, 1602 in the German city of Magdeburg. His birth name was Otto
Doc 2: A politician, physicist, engineer, and natural philosopher, von Guericke invented the world's first air pump in 1650.
Doc 3: Otto von Guericke was born to a patrician family of Magdeburg, Germany. In 1617 he became a student at the Leipzig University. Owing to the
Doc 4: Otto von Guericke. German scientist, inventor, and politician (1602-1686)  Nationality, German. Known for, Research and experiment for vacuums. Scientific
Doc 5: Is this your ancestor? Explore genealogy for Otto (Gericke) von Guericke born 1628 Magdeburg, Erzstift Magdeburg, Heiliges Römisches Reich