
Are the following mentions coreferent?:
<m> air strike </m> in A refugee camp was the target of an air strike in South Sudan's Unity state on Thursday, less than 50 km ( 30 miles ) from the tense border with Sudan, a Reuters witness said. There appeared to be no casualties. The Reuters correspondent heard a large explosion then saw a crater about two metres ( 6. 6 feet ) wide, an unexploded bomb wedged in the side of a school building and a white aircraft flying north from the Yida refugee camp. 
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<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. 