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Japan's Empress Michiko (front R) chats with Spain's Queen Letizia (L) at Shizuoka Sengen Shrine on April 7, 2017 before Spain's royals leave for home. The Spanish royal couple has been on a four-day visit to Japan. / AFP PHOTO / POOL / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)

Japan's Empress Michiko (front R) chats with Spain's Queen Letizia (L) at Shizuoka Sengen Shrine on April 7, 2017 before Spain's royals leave for home.
The Spanish royal couple has been on a four-day visit to Japan. / AFP PHOTO / POOL / KAZUHIRO NOGI        (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)

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Spain's King Felipe (2nd R) and Queen Letizia shake hands with Japan's Emperor Akihito (2nd L) and Empress Michiko as they leave from Shizuoka Sengen Shrine in Shizuoka on April 7, 2017. The Spanish royal couple is on a four-day state visit to Japan. / AFP PHOTO / POOL / TORU HANAI (Photo credit should read TORU HANAI/AFP/Getty Images)

Spain's King Felipe (2nd R) and Queen Letizia shake hands with Japan's Emperor Akihito (2nd L) and Empress Michiko as they leave from Shizuoka Sengen Shrine in Shizuoka on April 7, 2017.
The Spanish royal couple is on a four-day state visit to Japan. / AFP PHOTO / POOL / TORU HANAI        (Photo credit should read TORU HANAI/AFP/Getty Images)

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Japan's Emperor Akihito and Empress Michiko visit Shizuoka Sengen Shrine to offer prayers in Shizuoka on April 7, 2017. / AFP PHOTO / Kazuhiro NOGI (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)

Japan's Emperor Akihito and Empress Michiko visit Shizuoka Sengen Shrine to offer prayers in Shizuoka on April 7, 2017. / AFP PHOTO / Kazuhiro NOGI        (Photo credit should read KAZUHIRO NOGI/AFP via Getty Images)

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Spain's Queen Letizia (L) and Japan's Empress Michiko watch a traditional performance at Shizuoka Sengen Shrine in Shizuoka on April 7, 2017. The Spanish royal couple is on a four-day state visit to Japan. / AFP PHOTO / POOL / TORU HANAI (Photo credit should read TORU HANAI/AFP via Getty Images)

Spain's Queen Letizia (L) and Japan's Empress Michiko watch a traditional performance at Shizuoka Sengen Shrine in Shizuoka on April 7, 2017.
The Spanish royal couple is on a four-day state visit to Japan. / AFP PHOTO / POOL / TORU HANAI        (Photo credit should read TORU HANAI/AFP via Getty Images)

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Spain's King Felipe (2nd L) and Queen Letizia (L) and Japan's Emperor Akihito (3rd L) and Empress Michiko (R) inspect an earthquake disaster prevention center in Shizuoka on April 7, 2017. The Spanish royal couple is on a four-day state visit to Japan. / AFP PHOTO / POOL / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)

Spain's King Felipe (2nd L) and Queen Letizia (L) and Japan's Emperor Akihito (3rd L) and Empress Michiko (R) inspect an earthquake disaster prevention center in Shizuoka on April 7, 2017.
The Spanish royal couple is on a four-day state visit to Japan. / AFP PHOTO / POOL / KAZUHIRO NOGI        (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)