Question: Which is a member of the sighthound family, Caucasian Shepherd Dog or Galgo Español?
Context: The Georgian Shepherd (Georgian: ქართული ნაგაზი "qartuli nagazi") is a molosser-type livestock guardian breed of dog with ancient working origins in the Georgia Caucasus.  The Georgian shepherd is related to the Caucasian Shepherd Dog.  There are two kinds of Georgian mountain dog: the short haired Kazbegian dog, also called "Nagazi", and the long haired Georgian mountain dog. The Chiribaya Dog (Spanish: "perro Chiribaya" ) or Peruvian shepherd dog ("perro pastor Peruano ") was a pre-Columbian breed of dog from the southwest of Peru, identified by the 42 mummies discovered by anthropologist Sonia Guillén Oneglio in the Ilo District, Moquegua Region, on the south coast of Peru.  It has been established that it was a llama herding dog.  The dogs were not only an important part of the social structure of the ancient Peruvians, but they received special treatment after death as well.  The dog variety has been referred to in various Spanish-language documentaries under different terms, such as "el perro pastor Chribaya" ('the Chiribaya shepherd dog') and "pastor Peruano " ('Peruvian shepherd'), though the ancient Peruvians did not keep sheep.  Its original name is unknown.  (It has been referred to more ambiguously by the term "perro Peruano " or "perro del Perú " ('Peruvian dog', 'dog of Peru'), but this has also been applied to an extant but ancient hairless variety, referred to in more detail as "perro sin pelo del Perú", 'hairless dog of Peru', or the Peruvian hairless dog, a favorite in South American dog shows.) The Moscow Water Dog, also known as the Moscow Diver, Moscow Retriever or Moskovsky Vodolaz, is a little-known dog breed derived from the Newfoundland, Caucasian Shepherd Dog and East European Shepherd.  It is now extinct, but was used in the development of the  Black Russian Terrier.  The Moscow Water Dog was produced only by the Red Star Kennels, the state operated organization chartered to provide working dogs for the armed services. The Rampur Greyhound is a breed of dog native to the Rampur region of Northern India, which lies between Delhi and Bareilly.  The Rampur hound is a large member of the sighthound family.  In North West of India it is often described as a smooth-haired sighthound that is substantially built.  It was the favored hound of the Maharajahs for jackal control, but was also used to hunt lions, tigers, leopards, and panthers.  It was considered a test of courage for a single hound to take down a golden jackal.  The Rampur is built to cover great distances at high speed but is also capable of great endurance. Cropping is the removal of part or all of the pinnae or auricles, the external visible flap of the ear, of an animal; it sometimes involves taping to make the ears pointy.  Most commonly performed on dogs, it is an ancient practice that was once done for perceived health, practical or cosmetic reasons.  In modern times, it is banned in many nations, but is still legal in a limited number of countries.  Where permitted, it is seen only in certain breeds of dog such as the Pit bull, Miniature Pinscher, Doberman Pinscher, Schnauzer, Great Dane, Boxer, Caucasian Shepherd Dog and Beauceron. 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. Five ships of the Royal Navy have borne the name HMS "Galgo", after the Galgo Español, the Spanish greyhound: The Galgo Español ("Spanish galgo") or Spanish greyhound is an ancient breed of dog, specifically a member of the sighthound family. The Caucasian Shepherd Dog (Adyghe: Хьэпарий, "Khʹèparij", Адыгэ Мэлыхъуэхьэ, "Adygè Mèlykhʺuèkhʹè" ; Karachay-Balkar: Басхан Парий, "Baskhan Parij" ; Armenian: Կովկասյան հովվաշուն, "Kovkasyan hovvašun" ; Azerbaijani: "Qafqaz çoban iti" ; Georgian: კავკასიური ნაგაზი, "Kavkasiuri nagazi" ; Turkish: "Kafkas Çoban Köpeği" ; Ossetian: Аргъонахъ, "Arghonaq" ; Russian: Кавказская овчарка, "Kavkazskaya ovčarka" ) is a large breed of dog that is popular in Russia, Armenia, Azerbaijan, and Georgia.  It is extremely popular in Georgia, which has always been the principal region of penetration of Caucasian shepherd dogs.  The official standard of this breed is fundamentally based on the dogs taken from Georgia. Moscow Watchdog (Russian: московская сторожевая ) is a breed of dog that was bred in the Soviet Union.  It descends from crosses between the St. Bernard, Caucasian Shepherd, and Russian Spotted Hound breeds.  It contains the physical size, attractiveness and intelligence of a St. Bernard and the awareness and assertive traits of a Caucasian Ovtcharka.
Answer: Galgo Español