
Are the following mentions coreferent?:
<m> stepped into </m> in When Matt Smith stepped into Doctor Who's title role as the 11th Doctor this weekend, he went from British character actor to potential entertainment legend. 
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<m> stepped into </m> in The new tenant of the Tardis was unveiled as Peter Capaldi stepped into Matt Smith's soon to be vacant Doctor Who shoes as the twelfth incarnation of the Time Lord. 