Detailed Instructions: Generate a correct and concise answer for the question based on the words in the context.
Problem:Context : The Megyeri Bridge, previously known as the Northern M0 Danube bridge, is a cable-stayed bridge that spans the River Danube between Buda and Pest, respectively the west and east sides of Budapest, the capital of Hungary.
Question : Over what river does Megyeri Bridge cross?
Solution:
Danube