Question: Are Cardillac and La donna del lago both operas?
Related documents: [0]  [DOC] La donna del lago (The Lady of the Lake) is an opera composed by Gioachino Rossini with a libretto by Andrea Leone Tottola (whose verses are described as "limpid" by one critic) based on the French translation of "The Lady of the Lake", a narrative poem written in 1810 by Sir Walter Scott, whose work continued to popularize the image of the romantic highlands. Scott's basic story has been noted as coming from "the hint of an incident stemming from the frequent custom of James V, the King of Scotland, of walking through the kingdom in disguise". [END] 
[1]  [DOC] Cardillac is an opera by Paul Hindemith in three acts and four scenes. wrote the libretto based on characters from the short story "Das Fräulein von Scuderi" by E.T.A. Hoffmann. [END] 
Answer: 
yes
yes