Question: What nationality is the composer of song Defying Gravity (Song)?
Sentence (from "Defying Gravity (song)"): It is mostly a solo sung by the main character of the show, Elphaba (the Wicked Witch of the West), with two small duets at the beginning and in the middle of the song between Elphaba and her friend Glinda, and a chorus part at the end in which the citizens of Oz sing.
Relevant evidence: No