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FILE - A family sit on a rock in front of a cargo ship anchors in the Marmara Sea awaits to access to cross the Bosphorus Straits in Istanbul, Turkey, on July 13, 2022. Turkish officials say a deal on a U.N. plan to unblock the exports of Ukrainian grain amid the war and to allow Russia to export grain and fertilizers will be signed Friday, July 22, 2022, in Istanbul. (AP Photo/Khalil Hamra, File)