
Are the following mentions coreferent?:
<m> killed </m> in Three Palestinians, who had sought refuge in a small co-educational UN school in Gaza City, died when a missile hit the building's toilet facilities. 
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<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. 