
Are the following mentions coreferent?:
<m> strike </m> in A refugee camp in South Sudan's Unity state was bombed on Thursday, South Sudan officials and witnesses said, threatening to raise tensions with Sudan. Sudan's armed forces denied they carried out the strike. The governor of Unity state, Taban Deng, accused Khartoum of carrying out the attack. 
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<m> claims </m> in The United Nations has disputed claims that Hamas militants fired mortars from the Gaza school that has suffered the deadliest attack of the war with Israel. 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 the school. 