
Are the following mentions coreferent?:
<m> death </m> in The recommendation of death was announced almost surreal stillness in the courtroom while the death recommendation was announced. Peterson was convicted of first-degree murder for the death of Laci Peterson and second-degree murder for the death of their unborn son just before Christmas 2002. 
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<m> death sentence </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. 