user: Classify each of these bands as Polish death metal, Norwegian death metal, or K-Pop: BTS, EXO, Red Velvet, Cadaver, Darkthrone, Behemoth, Vader, Empatic, Girls' Generation, TWICE, Blood Red Throne, Emperor, Gorgoroth, Decapitated

assistant: Polish death metal bands: Behemoth, Vader, Empatic, Decapitated 
Norwegian death metal bands: Cadaver, Darkthrone, Blood Red Throne, Emperor, Gorgoroth
K-Pop bands: BTS, EXO, Red Velvet, Girls' Generation, TWICE

user: Where is Michael Phelps from?

assistant: Baltimore, Maryland

user: Who wrote Howl's Moving Castle?

assistant: Howl's Moving Castle is a fantasy novel by British author Diana Wynne Jones.