Answer the following question: Information: - Los Angeles County, officially the County of Los Angeles, is a county in California. With a population of more than ten million people, it is the most populous county in the United States, and larger than that of 42 individual U.S. states. It has 88 incorporated cities and many unincorporated areas and at it is larger than the combined areas of the U.S. states of Delaware and Rhode Island. The county is home to more than one quarter of all California residents and is one of the most ethnically diverse counties in the U.S. Its county seat, the City of Los Angeles, is also its most populous city at about four million. - A breed is a specific group of domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. Breeds are formed through genetic isolation and either natural adaptation to the environment or selective breeding, or a combination of the two. Despite the centrality of the idea of "breeds" to animal husbandry and agriculture, no single, scientifically accepted definition of the term exists. A breed is therefore not an objective or biologically verifiable classification but is instead a term of art amongst groups of breeders who share a consensus around what qualities make some members of a given species members of a nameable subset. - or "cultivars" of an animal species, achieved through the process of selective breeding. When the lineage of a purebred animal is recorded, that animal is said to be "pedigreed". - The Strub Stakes is an American race for thoroughbred horses run at Santa Anita Park in Arcadia , California each year . Currently a Grade II stakes race with a purse of $ 200,000 , it is open to horses , age four , willing to race one and one - eighth miles on the dirt surface of Santa Anita Park . Run in early February , the race is the third leg of Santa Anita Park 's Strub Series . Inaugurated in 1948 as the Santa Anita Maturity , the name was changed to the Charles H. Strub Stakes in 1963 in honor of Charles H. Strub ( 1884 -- 1958 ) who built and owned Santa Anita Park . In 1994 the billing was shortened to the Strub Stakes . From 1948 to 1969 and from 1971 to 1997 the race was contested at 1 1 4 miles . - The San Gabriel Mountains are a mountain range located in northern Los Angeles County and western San Bernardino County, California, United States. The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert, with Interstate 5 to the west and Interstate 15 to the east. This range lies in, and is surrounded by, the Angeles National Forest, with the San Andreas Fault as the northern border of the range. - The Santa Anita Derby is an American Grade 1 thoroughbred horse race for three-year-olds run each April at Santa Anita Park in Arcadia, California and carries a purse of $1 million. Inaugurated in 1935, it is considered the most important West Coast stepping-stone to the Kentucky Derby. Since its inception, seven Santa Anita Derby winners have gone on to win the Kentucky Derby. - Santa Anita Park is a thoroughbred racetrack in Arcadia, California, United States. It offers some of the prominent racing events in the United States during the winter and in spring. With its backdrop of the San Gabriel Mountains, it is considered by many the world's most beautiful race track. The track is home to numerous prestigious races including both the Santa Anita Derby and the Santa Anita Handicap as well as hosting the Breeders' Cup in 1986, 1993, 2003, 2008, 2009, and from 2012 to 2014, plus 2016. In 2010, Santa Anita's ownership was moved to MI Developments Inc. (MID). - Arcadia ("Arkadia") is one of the regional units of Greece. It is part of the administrative region of Peloponnese. It is situated in the central and eastern part of the Peloponnese peninsula. It takes its name from the mythological character Arcas. In Greek mythology, it was the home of the god Pan. In European Renaissance arts, Arcadia was celebrated as an unspoiled, harmonious wilderness. - Arcadia is a city in Los Angeles County, California, United States located about northeast of downtown Los Angeles in the San Gabriel Valley and at the base of the San Gabriel Mountains. - The Santa Anita Handicap is an American Thoroughbred horse race held annually in early March at Santa Anita Park in Arcadia, California. It is a Grade I race for horses four years old and up and is considered the most important race for older horses in North America during the winter racing season. The ten-furlong Santa Anita Handicap offers a purse of $1 million. - The Thoroughbred is a horse breed best known for its use in horse racing. Although the word "thoroughbred" is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed. Thoroughbreds are considered "hot-blooded" horses that are known for their agility, speed and spirit. - The Breeders' Cup World Championships is an annual series of Grade I Thoroughbred horse races, operated by Breeders' Cup Limited, a company formed in 1982. From its inception in 1984 through 2006, it was a single-day event; starting in 2007, it expanded to two days. All sites have been in the United States, except in 1996, when the races were at the Woodbine Racetrack in Canada. - The San Gabriel Valley is one of the principal valleys of Southern California, lying generally to the east of the city of Los Angeles. Surrounding features include: After reading the paragraphs above, we are interested in knowing the entity with which 'strub stakes' exhibits the relationship of 'instance of'. Find the answer from the choices below. Choices: - administrative region - agriculture - animal - animal husbandry - art - base - behavior - breed - city - coast - combination - company - cup - definition - desert - environment - forest - grade - group - home - horse - horse race - kentucky derby - lineage - los angeles - lying - mountain - mountain range - national forest - ownership - park - part - peninsula - population - process - race - racing - range - season - series - share - single - species - spirit - spring - subset - thoroughbred - track - valley - year
Answer:
horse race