The term cur refers to the lowest class of nameless dog or Pariah Dog, generally a mixed-breed dog. Originally the word "cur" referred to a certain English purpose-bred, short-tailed cattle driving dog known only from historical records, the cur dog, but in modern usage it applies to any mixed-breed. Using only the above description and what you know about the world, "cur can be used as the term used to denote any mixed breed of dog" is definitely correct, incorrect, or inconclusive? 