
Are the following mentions coreferent?:
<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. 
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<m> take over </m> in Peter Capaldi favourite to take over from Matt Smith as Doctor Who 