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KAMPEN, NETHERLANDS - MARCH 14: King Willem-Alexander of The Netherlands during the official opening of the Reevediep waterway on March 14, 2019 in Kampen, Netherlands. The Reevediep is a newly constructed water connection between the IJssel near Kampen and the Drontermeer near Noordeinde. The connection will be constructed as a flood drain at high water levels in the IJssel. (Photo by Sjoerd van der Wal/Getty Images)

KAMPEN, NETHERLANDS - MARCH 14: King Willem-Alexander of The Netherlands during the official opening of the Reevediep waterway on March 14, 2019 in Kampen, Netherlands. The Reevediep is a newly constructed water connection between the IJssel near Kampen and the Drontermeer near Noordeinde. The connection will be constructed as a flood drain at high water levels in the IJssel. (Photo by Sjoerd van der Wal/Getty Images)