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Ballet show "Swan Lake" is performed by the St. Petersburg Ballet of Russia during the 55th International Carthage Festival in Tunis, Tunisia, July 11, 2019. (Xinhua/Adele Ezzine)
Ballet show "Swan Lake" is performed by the St. Petersburg Ballet of Russia during the 55th International Carthage Festival in Tunis, Tunisia, July 11, 2019. (Xinhua/Adele Ezzine)