
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 Expo 2009 </m> in The only hardware release at Macworld Expo 2009 was a predictable unibody upgrade for the 17-inch MacBook Pro, which Apple reports will have an eight-hour battery life. 