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TOKYO, JAPAN - AUGUST 19: A taxi driver looks on as a colleague goes to use a toilet made of coloured smart glass which turns opaque when the cubicle is locked, on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)

TOKYO, JAPAN - AUGUST 19: A taxi driver looks on as a colleague goes to use a toilet made of coloured smart glass which turns opaque when the cubicle is locked, on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)
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TOKYO, JAPAN - AUGUST 19: A taxi driver looks on as a colleague exits after using a toilet made of coloured smart glass which turns opaque when the cubicle is locked, on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)

TOKYO, JAPAN - AUGUST 19: A taxi driver looks on as a colleague exits after using a toilet made of coloured smart glass which turns opaque when the cubicle is locked, on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)
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Getty Images Entertainment Carl Court

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TOKYO, JAPAN - AUGUST 19: A taxi driver waits as a colleague uses a toilet made of coloured smart glass which turns opaque when the cubicle is locked, on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)

TOKYO, JAPAN - AUGUST 19: A taxi driver waits as a colleague uses a toilet made of coloured smart glass which turns opaque when the cubicle is locked, on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)
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Getty Images Entertainment Carl Court

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TOKYO, JAPAN - AUGUST 19: A public toilet made of coloured smart glass which turns opaque when the cubicle is locked is pictured on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)

TOKYO, JAPAN - AUGUST 19: A public toilet made of coloured smart glass which turns opaque when the cubicle is locked is pictured on August 19, 2020 in Tokyo, Japan. The toilet, designed by Japanese architect Shigeru Ban, is intended to allow users to check cleanliness and occupancy from the outside and is part of the Tokyo Toilet project which is redesigning 17 of the the Japanese capitals public toilets with different designers. (Photo by Carl Court/Getty Images)
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Elementary school students look at a public toilet on display with one-way glass during a special interactive class with students about sanitation in Tokyo on July 26, 2018, following the launch of a partnership between UNICEF and Japanese household products firm Lixil aimed at helping hundreds of millions of people gain access to clean and safe toilets. - Lixil has developed a latrine that sells for just a few dollars and features a self-sealing trapdoor to keep out disease-spreading insects, and seal in unpleasant odours. (Photo by Kazuhiro NOGI / AFP) (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)

Elementary school students look at a public toilet on display with one-way glass during a special interactive class with students about sanitation in Tokyo on July 26, 2018, following the launch of a partnership between UNICEF and Japanese household products firm Lixil aimed at helping hundreds of millions of people gain access to clean and safe toilets. - Lixil has developed a latrine that sells for just a few dollars and features a self-sealing trapdoor to keep out disease-spreading insects, and seal in unpleasant odours. (Photo by Kazuhiro NOGI / AFP) (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)
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AFP KAZUHIRO NOGI