
Are the following mentions coreferent?:
<m> says </m> in The United Nations says no militants were inside a United Nations-run school attacked by Israeli forces in Gaza, leaving 40 people dead. Christopher Gunness from the UN Relief and Works Agency said an initial investigation left him 99.9 per cent sure there were no militants at the school. 
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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. 