
Are the following mentions coreferent?:
<m> announced </m> in chipmaker AMD, hoping to gain a leg up on a resurgent rival Intel ( INTC ), on July 24 ended months of speculation by saying it would buy graphics chipmaker ATI for about $ 5.4 billion. 
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<m> say </m> in Analysts say that the imminent purchase of ATI is the most vital element in AMD's concerted campaign to dethrone the mighty Intel Corp. 