Input (grade 5): Gunther leads in a downcast BrÃ 1\/4 nnhilde, who is astonished to see Siegfried.
Output (grade 4): Gunther is to marry BrÃ 1\/4 nnhilde and Siegfried is to marry Gutrune. BrÃ 1\/4 nnhilde can not understand why Siegfried is doing this.