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 is the surface area of the lagoon southwest of Dreverna?" whose answer is 1,619 km2.
Each document should contain about 30 words, and these documents should contain useful information.

Query: location of lagoon southwest of Dreverna
Useful Output:

Doc 1: Dreverna is a village located on the Dreverna river, southwest of the village is the Curonian Lagoon — Photo. Save Share.
Doc 2:  Dreverna harbour. Dreverna is a village located on the Dreverna river, southwest of the village is the Curonian Lagoon. Show more. Choose your license. 1. Do
Doc 3:  Dreverna harbour. Dreverna is a village located on the Dreverna river, southwest of the village is the Curonian Lagoon. Author credit line. Ljphoto7. ID
Doc 4:  Dreverna harbour. Dreverna is a village located on the Dreverna river, southwest of the village is the Curonian Lagoon. Search stock photos by tags. above
Doc 5: Dreverna is a village located in the Klaipėda County, on the Dreverna river, southwest of the village is the Curonian Lagoon.. Source: Wikipedia