
Are the following mentions coreferent?:
<m> keynote address </m> in While Apple's final keynote address at the annual MacWorld convention in San Francisco didn't contain the iPhone-related announcements many had hoped for, we were given all of the details on Apple's latest revamp to their largest and most powerful MacBook Pro. Apple's senior vice president of Worldwide Product Marketing, Philip Schiller, delivered the address and detailed the major revisions to the 17 '' MacBook Pro. 
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<m> Macworld 2009 keynote </m> in With a 17-inch MacBook Pro update unveiled at today's Macworld 2009 keynote, Apple has finally brought an entire line of Mac portables into view. The rumor mill was way off this year when it predicted a $ 600 Mac netbook or iPhone nano as Apple's one more thing for Macworld 2009. Instead, Apple's vice president of worldwide marketing Phil Schiller, appointed by Steve Jobs to deliver the keynote presentation in his absence, saved the new 17-inch MacBook Pro as the company's last surprise. 