Assertion: cairn terrier's year | /r/CapableOf | breed out particular marking
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Source sentences:
text: (It was said that people who raised collies had always disliked the blaze and had tried for years to breed out that particular marking, thus it was a great blow when the Lassie films became popular and everyone began clamoring for collies with white facial blazes like MGM's favorite "dog star," but I have since read that this fact isn't true.)