
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 Yesterday Advanced Micro Devices Inc. ( AMD ), a leading global CPU maker, announced its purchase of Canada-based graphics chips maker ATI Technologies Inc. in a US $ 5.4 billion deal that many said would help AMD compete more effectively with Intel Corp., its largest-in-the-world rival. 