
Are the following mentions coreferent?:
<m> welcome </m> in After a witty intro by Siri herself, Apple CEO Tim Cook took the stage in San Francisco to welcome developers and announce new stuff. 
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<m> come </m> in Apple launches new MacBook Pros with Ivy Bridge, from $1, 199 Apple's new MacBook Pros come with Ivy Bridge processors and the Nvidia GeForce GT650M graphics card. 