
Are the following mentions coreferent?:
<m> first degree murder </m> in An Oklahoma jury has found 27 year old Christopher Simpson guilty of first degree murder of his then pregnant 20 year old girlfriend Ka'loni Flynn and their 12 week unborn child. 
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<m> murder </m> in Upon learning of his death sentence, Scott Peterson sat defiantly still and tight-jawed, the same vacant expression he wore throughout a murder trial in which he never spoke.