
Are the following mentions coreferent?:
<m> announcing </m> in The pitched battle for supremacy in the chip-making market reached a critical phase yesterday with Advanced Micro Devices ( AMD ) in Sunnyvale, Calif. announcing its decision to acquire Canadian graphic cards manufacturer ATI Technologies ( ATI ). 
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<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. 