A contemporary artist from this country has voluntarily lived in a sanatorium for the last four decades and paints many works that consist of polka-dots.
One artist from this country created a series of sculptures of cute, sleepy-eyed children carrying casually carrying lethal weapons like saws and knives. Another artist from this country founded its "concreteness" group and devoted the last years of his life to repeatedly painting circles. Some of this country's traditional painting styles were revived in part by Ernest Fenollosa in the nineteenth century. A contemporary artist from this country has voluntarily lived in a sanatorium for the last four decades and paints many works that consist of polka-dots. Another artist from this country has produced many paintings of smiling, technicolor  lowers, as well as the cover art for Kanye West's Graduation. That cartoonish style from this country o ten subverts sexualized images of women. For 10 points, name this country that is the origin of the super lat style and artists such as Yayoi Kusama and Takashi Murakami.
One artist from this country created a series of sculptures of cute, sleepy-eyed children carrying casually carrying lethal weapons like saws and knives.
Japan [or Nihon; or Nippon]