Question: Are Cordoba Fighting Dog and Portuguese Water Dog both examples of dog breeds?
Related documents: [0]  [DOC] The Cordoba Fighting Dog is an extinct breed of fighting dog. The Cordoba was a crossbreed of Mastiff, Bull Terrier, Bulldog, and Boxer.. Its temperament includes being very fierce, very aggressive, [END] 
[1]  [DOC] The Portuguese Water Dog is a breed of working dog as classified by the American Kennel Club. Portuguese Water Dogs are originally from the Portuguese region of the Algarve, from where the breed expanded to all around Portugal's coast, where they were taught to herd fish into fishermen's nets, to retrieve lost tackle or broken nets, and to act as couriers from ship to ship, or ship to shore. [END] 
Answer: 
yes
yes