splitting and assigning strings to new variable. Help me please, was sailing along so well.

available = "banana split;hot fudge;cherry;malted;black and white"

#task-1
#split() function splits the string using the delimiter provided and returns a list.
#for example
#"someohhoohhostringohhoohhoisohhoohhohere".split('ohhoohho')
#will return ['some', 'string', 'is', 'here']

#here we have to: 'Use .split() to break the available string apart on the semi-colons (;).'
#so, it would be...  available.split(';')
# Assign this to a new variable sundaes.
#and that would be... sundaes = available.split(';')

sundaes = available.split(';')

#task-2
#Make a new variable named menu that's set to "Our available flavors are: {}.".
menu = "Our available flavors are: {}."

#task-3
#join() function joins the element of the list using the string provided as joiner.
#it is to be remembered that split and join are functions of a String (not list)
#for example: "ACHUUACHUU".join(['some', 'string', 'is', 'here'])
#will return: 'someACHUUACHUUstringACHUUACHUUisACHUUACHUUhere'
#Combine the sundaes list into a new variable named display_menu, where each item in the list is rejoined together by a comma and a space (", ").
display_menu = ", ".join(sundaes)
#Then reassign the menu variable to use the existing variable and .format() to replace the placeholder with the new string in display_menu.
menu = menu.format(display_menu)