
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. 
</s>
<m> according to </m> in According to the director of operations of the United Nations Relief and Works Agency for Palestine Refugees in the Near East, John Ging, some 30 people were killed and 55 others were injured, five of them critically, when three artillery shells landed at the perimeter of a school, which usually serves as a girls'preparatory school, in the Jabaliya refugee camp. 