    entence 1: What does the Rhine merge with outside  f Germany?    entence 2: Two thirds of the water flow volume of  che Rhine flows farther west, through the Waal and|  chen, via the Merwede and Nieuwe Merwede (De|  iesbosch), merging with the Meuse, through the|  jollands Diep and Haringvliet estuaries, into the|  jorth Sea.