
Are the following mentions coreferent?:
<m> killed </m> in More than 50 people were killed in Israel's assault on Gaza, when the bombing of UN schools being used as refugee centres and of housing killed more than 50 people, including an entire family of seven young children. Doctors in Gaza said more than 40 people died, including children, in what appears to be the biggest single loss of life of the campaign when Israeli bombs hit al-Fakhora school, in Jabaliya refugee camp, while it was packed with hundreds of people who had fled the fighting. 
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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. 