
Are the following mentions coreferent?:
<m> take up </m> in Matt, who has stage and TV credits, will take up the role in 2010. 
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<m> take over </m> in A relative unknown will take over the title role of Doctor Who in the British science fiction television show, making him the 11th time lord in 45 years to travel across the universe in the Tardis time-ship. 