Question: Finishing the Hat, a book by American musical theatre composer and lyricist Stephen Sondheim, contains the lyrics from which musical Sondheim collaborated with Burt Shevelove?
Sentence (from "The Frogs (musical)"): The Frogs is a musical "freely adapted" by Stephen Sondheim and Burt Shevelove from "The Frogs", an Ancient Greek comedy by Aristophanes.
Relevant evidence: Yes