
Are the following mentions coreferent?:
<m> announced </m> in Apple unveils latest MacBook Pros, iOS 6 for iPhone and iPad June 11, 2012 at 12 : 36 PM ET After a witty intro by Siri herself, Apple CEO Tim Cook took the stage in San Francisco to welcome developers and announce new stuff. New MacBooks, global marketing VP Phil Schiller announced updates to the MacBook line. 
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<m> announce </m> in Apple has chosen WWDC week to announce an update to its MacBook Air line. 