Question: Alaunt or Polish Tatra Sheepdog, which is extinct?

full_context: Document 1: Polish Tatra Sheepdog: The Polish Tatra Sheepdog is a breed of dog introduced into the Tatra Mountains of Southern Poland by Vlachian (Romanian) shepherds.
Document 2: Pyrenean Shepherd: The Pyrenean Shepherd (known in France originally, and also in non-AKC registries such as the UKC, as the Berger des Pyrénées, and in Spain as the Pastor de los Pirineos) is a medium-small breed of dog native to the Pyrenees mountains in southern France and northern Spain, bred since at least medieval times for herding livestock, especially sheep. It worked as an active herder together with the Great Pyrenees, another mountain dog, which acted as the flock's guardian.
Document 3: Maremma Sheepdog: The Maremma Sheepdog, in Italian Cane da pastore Maremmano-Abruzzese, is a breed of livestock guardian dog indigenous to central Italy, particularly to Abruzzo and the Maremma region of Tuscany and Lazio. It has been used for centuries by Italian shepherds to guard sheep from wolves. The literal English translation of the name is "The dog of the shepherds of the Maremma and Abruzzese region". The English name of the breed derives from that of the Maremma marshlands, where until recently shepherds, dogs and hundreds of thousands of sheep over-wintered, and where the breed is today abundant although sheep-farming has decreased substantially. The breed is widely employed in Abruzzo, where sheep herding remains vital to the rural economy and the wolf remains an active and protected predator. Similar breeds include the Pyrenean Mountain Dog, the Kuvasz of Hungary, the Tatra of Poland, the Cuvac of Slovakia and the Šarplaninac (although not white), with all of which it may share a common ancestor; and the Akbash Dog of Turkey.
Document 4: Molossus of Epirus: The Molossus of Epirus (Greek: Μολοσσός της Ηπείρου) is a large dog breed originating from Greece. It is a livestock guardian that has been bred since the age of Alexander the Great for protecting livestock from carnivorous mammals including the wolf, European jackal and the brown bear in the mountainous regions of Greece, especially Epirus. The Molossus is a pure Greek breed and is believed to be one of the main ancestors of today's Molosser breeds, such as the English Mastiff and the Neapolitan Mastiff,
Document 5: Slovak Cuvac: The Slovak Cuvac is a Slovak breed of dog, bred for use as a livestock guard dog. This mountain dog—also known as Slovensky Cuvac, Slovak Chuvach, Tatransky Cuvac and Slovensky Kuvac—is closely related to the Hungarian Kuvasz. The alternate German and English spelling "Tchouvatch" reflects the pronunciation: "chew-votch". The breed is recognised under sponsorship from Slovakia by the Fédération Cynologique Internationale with the name Slovenský čuvač. Despite the multiple renderings in English, these refer to only one breed. The United Kennel Club in the US uses the English version of the name "Slovak Cuvac".
Document 6: Alpine Spaniel: The Alpine Spaniel is an extinct breed of dog which was used in mountain rescues by the Augustinian Canons, who run hospices in the region around the Great St. Bernard Pass. The spaniel was a large dog notable for its thick curly coat. One of the most famous specimens of the Alpine Spaniel is Barry, however his preserved body has been modified on more than one occasion to fit with descriptions of the extinct breed from earlier time periods. Due to the conditions in the Alps, and a series of accidents, extinction was discussed as a possibility by authors during the 1830s, and at some point prior to 1847 the entire breed was reduced to a single example due to disease. Evidence held at the Natural History Museum in Bern show that two distinct breeds of dog were being used in the area during this time period. The breed is thought to be the predecessor to the modern St. Bernard and the Clumber Spaniel.
Document 7: Romanian Raven Shepherd Dog: The Romanian Raven Shepherd Dog is a very large Romanian livestock guardian dog, taxonomized within the second group of dog breeds - Pinscher and Schanuzer - Molossoid Breeds - Swiss Mountain and Cattle Dogs, section 2.2: Molossoid Breeds - Mountain type.
Document 8: Alpine Mastiff: The Alpine Mastiff is an extinct Molosser dog breed, the progenitor of the St. Bernard, and a major contributor to the modern Mastiff (through such dogs as "Couchez"), as well as to other breeds that derive from these breeds or are closely related to them. M.B. Wynn wrote, "In 1829 a vast light brindle dog of the old Alpine mastiff breed, named L'Ami, was brought from the convent of Great St. Bernard, and exhibited in London and Liverpool as the largest dog in England." William Cavendish, 5th Duke of Devonshire, is believed to have bred Alpine Mastiffs at Chatsworth House.
Document 9: Old German herding dogs: The old German herding dogs (German: "altdeutsche Hütehunde" ), including old German sheep-dogs or old German shepherd dogs (altdeutsche Schäferhunde ) are a group of traditional types of working, herding dogs from Germany. They are landraces consisting of working strains of dog, and some of them are the types from which the modern German Shepherd Dog was developed as a standardised breed. The landraces are not recognised by the Fédération Cynologique Internationale but some have their own standards, which are for working ability not appearance traits.
Document 10: English Mastiff: The English Mastiff is a breed of extremely large dog (often known simply as the Mastiff) perhaps descended from the ancient Alaunt and Pugnaces Britanniae, with a significant input from the Alpine Mastiff in the 19th century. Distinguishable by enormous size, massive head, and a limited range of colours, but always displaying a black mask, the Mastiff is noted for its gentle and loving nature. The lineage of modern dogs can be traced back to the early 19th century, but the modern type was stabilised in the 1880s and refined since. Following a period of sharp decline, the Mastiff has increased its worldwide popularity. Throughout its history, the Mastiff has contributed to the development of a number of dog breeds, some generally known as Mastiff-type dogs, or, confusingly, just as "Mastiffs".
Document 11: Alaunt: The Alaunt is an extinct breed of dog, with the original breed having existed in central Asia and Europe from ancient times through the 17th century. The Alaunt breed had three distinct phenotypes: Alaunt Veantre, Alaunt Boucherie and the Alaunt Gentile. They all were large, short coated dogs of varying head-types. The former two resembled the molosser type dogs much like the present-day Dogo Argentino or like the Caucasian Shepherd Dog except with short hair and a mesocephalic head which made them excellent large-game hunters. The Alaunt was originally bred by the Alani tribes, the nomads of Indo-European Sarmatian ancestry who spoke an Iranian language. The Alans were known as superb warriors, herdsmen, and breeders of horses and dogs. The Alans bred their dogs for work and developed different strains within the breed for specific duties. The breed was further developed in Spain, France, Germany, England, and in Italy.
Document 12: Bullenbeisser: The Bullenbeisser (also known as the German Bulldog) was a breed of dog known for its strength and agility. The breed was closely related to the Bärenbeisser (some believe that the two breeds were the same; the names mean "bull-biter" and "bear-biter," respectively), and the Boxer. It was, in all its aspects, similar to the present Alano Español (Spanish Bulldog) and very alike to the Dogo Argentino, not only in aspect, but also in usage. There were two regional varieties, the Brabanter Bullenbeisser and the Danziger Bullenbeisser. The breed is now extinct.
Document 13: Dogo Argentino: The Dogo Argentino, also known as the Argentine Mastiff, is a large, white, muscular dog that was developed in Argentina primarily for the purpose of big-game hunting, including wild boar; the breeder, Antonio Nores Martínez, also wanted a dog that would exhibit steadfast bravery and willingly protect its human companion. It was first bred in 1928, from the Cordoba Fighting Dog along with a wide array of other breeds including the Great Dane.
Document 14: Polish Lowland Sheepdog: The Polish Lowland Sheepdog (Polish: "Polski Owczarek Nizinny" , also PON), is a medium-sized, shaggy-coated, sheep dog breed native to Poland.
Document 15: Polish Hound: The Polish Hound, commonly known as Ogar Polski, is a breed of hunting dog indigenous to Poland. The Polish Hound has a keen sense of smell. This heightened sense combined with the endurance needed to hunt in harsh environments led to its use in hunting, while its stature made it popular with Polish nobility.
ground_truth: Alaunt