
Are the following mentions coreferent?:
<m> disappearance </m> in The jury concluded that the circumstances surrounding Laci Peterson's disappearance and death could not reasonably be explained in any other way but that Scott Peterson wanted her dead so he could continue and perhaps expand his secret life with Amber Frey. 
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<m> disappeared </m> in 23-year-old Laci disappeared from the couple's home in Modesto, California, 23 months ago. 