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 St. John's water dog, also known as the St. John’s dog or the lesser Newfoundland, was a landrace (a dog bred for a purpose, not pedigree or appearance) of domestic dog from Newfoundland.
 Little is known of the types that went into its genetic makeup, although it was probably a random-bred mix of old English, Irish and Portuguese working dogs.
 The number of St. John's water dogs started declining by the start of the 20th century.
 By the early 1980s, the variety was extinct.
A grief therapy dog (also known as an emotional support dog, companion dog, or comfort dog) is a form of animal-assisted therapy.
 Dogs have been proven to be able to assist people in overcoming grief, which has led to a recent rise in the use of therapy dogs; although animal-assisted therapy theory has been around since World War II.
 Grief therapy dogs can be found in locations such as funeral homes, hospitals, nursing homes, schools, and hospices, and may provide support in situations such as funeral services, counseling sessions, and disaster relief.
 Popular breeds used as therapy dogs include the Portuguese Water Dog, Bernese Mountain Dog, St. Bernard, and Golden Retriever.
The Tweed Water Spaniel, or Tweed Spaniel, is a breed of dog extinct since the 19th century.
 It is best known for being involved in the early development of the modern Curly Coated Retriever and Golden Retriever breeds of dogs.
 They were described as a generally brown athletic dogs from the area around Berwick-upon-Tweed near the River Tweed and close to the Scottish Borders.
 A type of water dog, the breed was not well known outside the local area.
 This breed may have been created by crossing local water dogs with imported St. John's water dog, another breed which is also now extinct.
Bo (born October 9, 2008) is a pet dog of the Obama family, the former First Family of the United States.
 Bo is a male Portuguese Water Dog.
 President Barack Obama and his family were given the dog as a gift after months of speculation about the breed and identity of their future pet.
 The final choice was made in part because Malia Obama's allergies dictated a need for a hypoallergenic breed.
 Bo has occasionally been called "First Dog".
 In August 2013, Bo was joined by Sunny, a female dog of the same breed.
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.
The Spanish Water Dog (perro de agua español ) breed dates back several hundred years and has its origins most likely in Turkey from where it was imported into Spain as a general purpose sheepdog and guard.
 It is also used sometimes as a gundog, and is skilled at retrieval from water.
 The SWD has strong genetic links to other ancient water breeds such as the Portuguese Water Dog, the French Barbet and the Irish Water Spaniel.
The Bracco Italiano ] is a breed of dog developed in Italy as a versatile gun dog.
St. John's Regional Medical Center is a hospital located in Oxnard, California in the United States, and is operated by Dignity Health, along with its sister hospital, St. John's Pleasant Valley Hospital in Camarillo, California.
 The hospital was founded in 1912.
 St. John's Regional Medical Center and St. John's Pleasant Valley Hospital offer comprehensive medical services, including 24-hour emergency medical and surgical services and care, cancer and oncology care and support, cardiovascular care, community outreach and screenings, diagnostic imaging services, laboratory services, maternity and women's services, neonatal intensive care, palliative care, patient and family education, rehabilitation services, spine and orthopedic care, weight loss surgery, wound healing and oxygen therapy, and more.
 Together, St. John's Regional Medical Center and St. John's Pleasant Valley Hospital represent the largest acute-care health organization in Ventura County.
 St. John's hospitals serve all of Ventura County and beyond, including the cities of Camarillo, Moorpark, Oxnard, Port Hueneme, Ventura, and Somis.
The Wetterhoun (FCI No.221, translated into English as the Frisian Water Dog) is a breed of dog traditionally used as a hunting dog for hunting small mammals and waterfowl in the province of Fryslan in the Netherlands.
 The name of the dog comes from the West Frisian "Wetterhûn" meaning "water dog."
 Plural of Wetterhoun is Wetterhounen in Dutch.
 The breed may also be called the "Otterhoun" (not to be confused with the Otterhound) or "Dutch Spaniel", although it is not a Spaniel-type dog.

Question: Which breed of dog is extinct, the Bracco Italiano or the St. John's water dog?
Answer: St. John's water dog