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Saudi officials stand in front of the flags of countries being hosted by Saudi Arabia to attend the 4th summit of Arab States and South American countries, during the welcoming ceremony held at King Khalid International airport in Riyadh, on November 10, 2015. Arab leaders and top officials from South America are converging on Saudi Arabia for a summit aiming to strengthen ties between the geographically distant but economically powerful regions. AFP PHOTO / FAYEZ NURELDINE (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)

Saudi officials stand in front of the flags of countries being hosted by Saudi Arabia to attend the 4th summit of Arab States and South American countries, during the welcoming ceremony held at King Khalid International airport in Riyadh, on November 10, 2015. Arab leaders and top officials from South America are converging on Saudi Arabia for a summit aiming to strengthen ties between the geographically distant but economically powerful regions. AFP PHOTO / FAYEZ NURELDINE        (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)