
Are the following mentions coreferent?:
<m> announced </m> in Advanced Micro Devices (NYSE : AMD) announced the largest acquisition in its history Monday, paying about $ 5.4 billion to acquire graphics chip specialist ATI Technologies. 
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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. 