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CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

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CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

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CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

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CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)

CAPE SOUNIO, GREECE - MAY 03: King Philippe of Belgium and Queen Mathilde visit the Temple of Poseidon on the second day of their official three-days state visit to Greece on May 03, 2022 in Cape Sounio, Greece. The King and Queen head a delegation of ministers, businessmen, academics and industrials to the Hellenic Republic to review fields and aspects of common interest. (Photo by Olivier Matthys/Getty Images)