
Are the following mentions coreferent?:
<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. 
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<m> Macworld Expo </m> in For me the new, unibody MacBook Pro 17-inch ( PN MB604LL/A) is probably the most exciting thing announced here at Macworld Expo. 