
Are the following mentions coreferent?:
<m> Macworld </m> in After weeks of speculation about what would be introduced at Macworld, Apple Inc. took the wraps off of updated iTunes and iLife software and unveiled a 17-inch MacBook Pro. Delivering the keynote address at the Macworld trade show, Apple Inc. took the wraps off of updated iTunes and iLife software and unveiled a new online service that lets users share documents over the Web. 
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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. 