
Are the following mentions coreferent?:
<m> known </m> in Peter Capaldi : from spin doctor to the new Doctor Who Scottish actor best known for his role as Malcolm Tucker in The Thick of It revealed as 12th actor to play the Doctor 
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<m> unknown </m> in Users on the Facebook Doctor Who forum that I frequent mostly had the same reaction :  Who's Matt Smith? '' The guy is relatively unknown and the skeptics wondered if the right person was chosen. 