
Are the following mentions coreferent?:
<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. 
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<m> according to </m> in According to the spokesman of the United Nations Relief and Works Agency, Christopher Gunness, three shells hit Fakhura, a girls elementary school in the Jabalya refugee camp in northern Gaza at about 3pm on Tuesday ( 12am yesterday ). 