The Powerpuff Girls
American animated television series
Are the names of The Powerpuff Girls alliterative? 
To be alliterative, words must have the same initial consonant sound. The names of The Powerpuff Girls are Blossom, Buttercup, and Bubbles.
What are the names of The Powerpuff Girls? What features are necessary for a group of words to be considered alliterative? Are #2 present in #1?