│ └ tastes
│    └ Karaoke, song books
│       ├ Karaoke, song books in general
│       ├ Karaoke, songbook
│       ├ Enka, Nutmeiro
│       ├ Children's Songs, Shoka
│       ├ folk song
│       └ Karaoke, song books, etc.
│    └ karaoke machine
│       ├ Karaoke machine main unit
│       └ karaoke cartridge
   └ music
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