Question: What is a similarity between the Cairn Terrier and the German Hound?

Context paragraphs:
Terry (dog): Terry (November 17, 1933 – September 1, 1945) was a female Cairn Terrier performer who appeared in 16 different movies, most famously as Toto in the 1939 movie "The Wizard of Oz".  It was her only credited role, though she was credited not as Terry but as Toto.

Scottish Terrier: The Scottish Terrier (also known as the Aberdeen Terrier), popularly called the Scottie, is a breed of dog.  Initially one of the highland breeds of terrier that were grouped under the name of "Skye Terrier", it is one of five breeds of terrier that originated in Scotland, the other four being the modern Skye, Cairn, Dandie Dinmont, and West Highland White Terriers.  They are an independent and rugged breed with a wiry outer coat and a soft dense undercoat.  The First Earl of Dumbarton nicknamed the breed "the diehard".  The modern breed is said to be able to trace its lineage back to a single female, named Splinter II.

German Hound: The German Hound ("Deutsche Bracke") (FCI No. 299) is a breed of dog originating in Westphalia, a region of Germany.  The German Hound is of the scenthound type, used for hunting both large and small game.  The breed is normally referred to as the "Deutsche Bracke" in English, rather than by the translation of the name, German Hound.

Carl Spitz: Carl Spitz (August 26, 1894 – September 15, 1976) was a Hollywood dog trainer, most famous for owning and training the Cairn Terrier Terry, who portrayed Toto in the movie "The Wizard of Oz".  Spitz developed the method of using silent hand signals to direct an animal.  Terry did her own stunts.

Cairn Terrier: The Cairn Terrier is one of the oldest terrier breeds, originating in the Scottish Highlands and recognized as one of Scotland's earliest working dogs.  The breed was given the name Cairn, because the breed's function was to hunt and chase quarry between the cairns in the Scottish highlands.

Craniomandibular osteopathy: Craniomandibular osteopathy, also known as lion's jaw, is a developmental disease in dogs causing extensive bony changes in the mandible and skull.  In this disease, a cyclical resorption of normal bone and replacement by immature bone occurs along the inner and outer surfaces of the affected bones.  It usually occurs between the ages of 3 and 8 months.  Breeds most commonly affected include the West Highland White Terrier, Scottish Terrier, Cairn Terrier, and Boston Terrier.  It is rare in large-breed dogs, but it has been reported.  Symptoms include firm swelling of the jaw, drooling, pain, and difficulty eating.

Ocular melanosis: Ocular melanosis (OM), also known as ocular melanocytosis or melanosis oculi, is a congenital disease of the eye which affects about 1 in every 5000 people and is a risk factor for uveal melanoma.  In dogs is found almost exclusively in the Cairn Terrier, where until recently it was known as pigmentary glaucoma.  The disease is caused by an increase of melanocytes in the iris, choroid, and surrounding structures.  Overproduction of pigment by these cells can block the trabecular meshwork through which fluid drains from the eye.  The increased fluid in the eye leads to increased pressure, which can lead to glaucoma.  In humans, this is sometimes known as pigment dispersion syndrome.

Drever: The Drever is a breed of dog, a short-legged scenthound from Sweden used for hunting deer and other game.  The Drever is descended from the Westphalian Dachsbracke, a type of German hound called "Bracke".  The breed name Drever was chosen through a contest in 1947.

Ring cairn: A ring cairn (also correctly termed a ring bank enclosure, but sometimes wrongly described as a ring barrow) is a circular or slightly oval, ring-shaped, low (maximum 0.5 metres high) embankment, several metres wide and from 8 to 20 metres in diameter.  It is made of stone and earth and was originally empty in the centre.  In several cases the middle of the ring was later used (at Hound Tor, for example, there is a stone cist in the centre).  The low profile of these cairns is not always possible to make out without conducting excavations.

Norbert (dog): Norbert is a fluffy, 7" tall mixed breed registered therapy dog, best known for his Norbert picture book series, and his popularity on social media.  Norbert's breed is unknown, but is suspected to be a cross between 3 dog breeds, chihuahua, cairn terrier & lhasa apso.  Norbert's time, money and book revenue is given to various charitable causes throughout the United States.

Supporting paragraphs: German Hound Cairn Terrier
Answer: used for hunting