The Merry Widow ballet is an adaptation of Franz Lehár 's romantic operetta `` The Merry Widow `` ( `` Die lustige Witwe `` ) .
DET PROPN PROPN NOUN AUX DET NOUN ADP PROPN PROPN PART ADJ NOUN `` DET PROPN PROPN `` ( `` VERB NOUN PROPN `` ) .