
Are the following mentions coreferent?:
<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. 
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<m> announcing </m> in In a news conference announcing the merger held in Taipei yesterday, Henri Richard, executive vice president of AMD urged investors not to worry as ATI's relations with TSMC and its rival United Microelectronics Corp. would not change. 