<human>: Does the sentence "Alpine festivals vary from country to country and often include the display of local costumes such as dirndl and trachten, the playing of Alpenhorns, wrestling matches, some pagan traditions such as Walpurgis Night and, in many areas, Carnival is celebrated before Lent." provide a valid answer to the question "When is Carnival celebrated?"
OPTIONS:
- yes
- no
<bot>: yes