
Are the following mentions coreferent?:
<m> unveiled </m> in New MacBook Air models officially unveiled with Ivy Bridge upgrade As rumored, new 11 - inch and 13 - inch MacBook Air models have just been officially announced by Apple at WWDC 2012. 
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<m> unveiled </m> in Apple CEO Steve Jobs unveiled the company's new high-end notebook line during the special event being held at Apple's headquarters in Cupertino, Calif. The new MacBook Pro will feature two graphic chipsets, the Nvidia GeForce 9400M embedded on the motherboard and the Nvidia GeForce 9600M as a discrete part. Jobs said that using the 9400M you get five hours of battery life and four hours with the 9600M. 