
Are the following mentions coreferent?:
<m> take over </m> in The BBC says little-known actor Matt Smith will take over the title role in the long-running sci-fi series Doctor Who. 
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<m> replacing </m> in Matt Smith, 26, will make his debut in 2010, replacing David Tennant, who leaves at the end of this year. He is the youngest actor to play the part. He has previously appeared on TV, in films and the theatre and is best known for appearing in the BBC's The Ruby in the Smoke. 