
Are the following mentions coreferent?:
<m> killed </m> in Twenty-eight hours after the attack on one of his schools killed 40 Palestinians seeking shelter from Israel's war on Hamas, the United Nations 'director of operations in Gaza, John Ging, was certain of at least one thing. The attack that has also left more 50 people with serious injuries, 10 of whom remain critical. When the Israeli attack came on the Prep C girls school in the Jabaliya camp at 3.45pm on Tuesday, Mr Ging said about 350 Palestinians were inside, using the school as a shelter. 
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<m> attack </m> in Three shells hit Fakhura, a girls elementary school in the Jabalya refugee camp in northern Gaza, at about 3pm on Tuesday ( 12am yesterday ), according to UN Relief and Works Agency spokesman Christopher Gunness. 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. 