
Are the following mentions coreferent?:
<m> second-degree murder </m> in The jury convicted the 32-year-old Peterson on Nov. 12 of first-degree murder for killing his wife and second-degree murder for the death of his unborn son. 
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<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. 