
Are the following mentions coreferent?:
<m> said </m> in A refugee camp in South Sudan's Unity state was bombed Thursday, South Sudan officials and witnesses said, threatening to raise tensions with Sudan in the violence- plagued border region. Taban Deng, the governor of Unity state, accused Sudan of carrying out the attack. 
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<m> saying </m> in John Ging, the top UN refugee official in Gaza, said UN staff and Palestinian families in the school compound had been screened for weapons, and he disputed Israel's claim that mortars were fired from inside. 