YOU SAID:
Who's the mad guy who invented this torture instrument : the cat piano ?!
INTO JAPANESE
この拷問器具、猫ピアノを発明した狂人は誰ですか?
BACK INTO ENGLISH
Who was the madman who invented this torture device, the cat piano?
INTO JAPANESE
この拷問器具、猫ピアノを発明した狂人は誰だったのでしょうか?
BACK INTO ENGLISH
Who was the madman who invented this torture device, the cat piano?
Okay, I get it, you like Translation Party.