Assertion: mastiff's muzzle | /r/HasProperty | discussion
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Source sentences:
text: During the first half of the 18th Century, there was a lot of debate as to whether dogs should have long or short muzzles which is a discussion that goes on to this day, but by the end of the century, Mastiffs were being bred as pedigree show dogs as well as watchdogs with the first six dogs being exhibited at a show in 1859.