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THE HAGUE, NETHERLANDS - JULY 4: (L-R) Vlasia Pavlopoulou, Greek President Prokopis Pavlopoulos, King Willem-Alexander and Queen Maxima of The Netherlands listen to the Greek national anthem at the Noordeinde Palace at the start of a two-day visit on July 4, 2016 in The Hague, Netherlands. The visit aims at strengthening the relationship between the two countries. (Photo by Michel Porro/WireImage)

THE HAGUE, NETHERLANDS - JULY 4: (L-R) Vlasia Pavlopoulou, Greek President Prokopis Pavlopoulos, King Willem-Alexander and Queen Maxima of The Netherlands listen to the Greek national anthem at the Noordeinde Palace at the start of a two-day visit on July 4, 2016 in The Hague, Netherlands. The visit aims at strengthening the relationship between the two countries. (Photo by Michel Porro/WireImage)