
Are the following mentions coreferent?:
<m> become </m> in Smith, 26, who played a young political researcher in the show, will become the biggest star of all after winning the role of the 11th Doctor. 
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<m> become </m> in Peter Capaldi is the bookies' favourite to become the next Doctor Who. There has been a surge in bets on Capaldi, who plays sweary spin doctor Malcom Tucker in The Thick of It, replacing Matt Smith. He now has odds of 2 / 1 to become the 12th Time Lord above Ben Daniels and Rory Kinnear. 