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: "Speleonaut, is the submersible used by the cave diver Jochen Hasenmayer, after the 1989 decompression accident that left his legs paralyzed, Hasenmayer designed the "Speleonaut" with his friend Konrad Gehringer in order to continue exploring the Blauhöhle cave system, which begins at the base of which spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern edge, in Southern Germany?" whose answer is Blautopf.
Each document should contain about 30 words, and these documents should contain useful information.

Query: spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern edge, in Southern Germany
Useful Output:

Doc 1:  Blue pot) is a spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern edge. It is located
Doc 2: Blautopf, Blaubeuren The Blautopf is a spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern edge,
Doc 3: Download authentic, Germany Swabian Jura Spring That Serves As The Source Of The River Blau, royalty-free stock photos & images.
Doc 4: The Blautopf (German for Blue pot) is a spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern
Doc 5: spring that serves as the source of the river Blau in the karst landscape on the Swabian Jura's southern edge, in. Southern Germany. Source: Wikipedia g. Ulm