Question: Abel Tasman at age three, she finished second in both the Santa Ysabel and Santa Anita Oaks before winning a Grade I stakes race with a purse of how much money?

Context paragraphs:
Sweet Catomine: Sweet Catomine (foaled February 14, 2002) is an American Thoroughbred racehorse and broodmare.  After finishing second on her racecourse debut as a two-year-old in July 2004, she emerged as the best juvenile filly of her generation in the United States, winning the Del Mar Debutante Stakes, Oak Leaf Stakes and Breeders' Cup Juvenile Fillies before being voted American Champion Two-Year-Old Filly.  In the following spring she won the Santa Ysabel Stakes and Santa Anita Oaks and was considered a serious contender for the Kentucky Derby before finishing fifth in the Santa Anita Derby and was retired from racing shortly afterwards.  Her run in the Santa Anita Derby was controversial as there were allegations that her connections had not been fully open about her training problems.  The complaints were dismissed after a formal hearing by the local racing authority.

Surfside (horse): Surfside (foaled January 21, 1997) is an American Thoroughbred racehorse and broodmare.  She was one of the best juvenile fillies in North America in 1999, winning four of her six races including the Frizette Stakes and the Hollywood Starlet Stakes as well a finishing third in the Breeders' Cup Juvenile Fillies.  In the spring of the following year she won the Santa Ysabel Stakes, Las Virgenes Stakes and the Santa Anita Oaks and returned from injury to win the Clark Handicap.  She was retired after two unsuccessful races as a four-year-old.

Stellar Wind (horse): Stellar Wind (foaled February 13, 2012) is an American Thoroughbred racehorse, known for her Eclipse Award winning three-year-old season, and later for her rivalry with the champion mare Beholder.  Bred in Virginia, she raced in Maryland as a juvenile, winning one minor race from two starts.  As a three-year-old, racing mainly in California, she improved to become arguably the best filly of her generation (in North America).  In the spring of 2015, she won the Santa Ysabel Stakes and the Santa Anita Oaks before finishing a troubled fourth in the Kentucky Oaks.  On her return to California, she recorded further victories in the Summertime Oaks and the Torrey Pines Stakes, and then ended her season by finishing a strong second in the Breeders' Cup Distaff.  She was voted American Champion Three-Year-Old Filly of 2015.

San Juan Capistrano Handicap: The San Juan Capistrano Invitational Handicap is an American invitational handicap Thoroughbred horse race run annually on turf at Santa Anita Park in Arcadia, California.  It is North America's longest graded stakes race.  Open to horses age four and older, the Grade III event currently offers a purse of $100,000.  Run during the second half of April as the traditional closing-day feature at Santa Anita Park, usually at about 1 ⁄ miles (about 2.74 km) it is the longest grass race in America.  Since 1965 it has been an invitational handicap.

Kentucky Oaks: The Kentucky Oaks is a Grade I stakes race for three-year-old Thoroughbred fillies staged annually in Louisville, Kentucky, United States.  The race currently covers 1+1/8 mi at Churchill Downs; the horses carry 121 lb .  The Kentucky Oaks is held on the Friday before the Kentucky Derby each year.  The winner gets a $600,000 purse and a large garland of lilies, affectionately called the "Lillies for the Fillies."  A silver Kentucky Oaks Trophy is presented to the winner.

Santa Ysabel Stakes: The Santa Ysabel Stakes is an annual American Thoroughbred horse race once run during January but now run in March at Santa Anita Park in Arcadia, California.  The race is open to fillies, age three, willing to race one and one-sixteenths miles (8.5 furlongs) on the dirt.  The race is a Grade III event with a current purse of $100,000 and has been a prep race to the Triple Tiara of Thoroughbred Racing, including the Kentucky Oaks, the Black-Eyed Susan Stakes and Mother Goose Stakes.

Santa Ynez Stakes: The Santa Ynez Stakes is an American Thoroughbred horse race run annually in mid January at Santa Anita Park in Arcadia, California.  The race is open to fillies, age three, willing to race seven furlongs on the dirt.  The race is a Grade II event with a current purse of $200,000 and has been a prep race to the Triple Tiara of Thoroughbred Racing, including the Kentucky Oaks, the Black-Eyed Susan Stakes and Mother Goose Stakes.

Abel Tasman (horse): Abel Tasman (foaled March 12, 2014) is an American Thoroughbred racehorse.  After finishing fifth in her first start at age two, she won her next three races including the Starlet Stakes.  At age three, she finished second in both the Santa Ysabel and Santa Anita Oaks before winning the Grade I Kentucky Oaks, the female equivalent of the Kentucky Derby.  She then earned her third Grade I win in the Acorn Stakes, followed up by a win in the Coaching Club American Oaks.

Gold Cup at Santa Anita Stakes: The Gold Cup at Santa Anita Stakes is a Grade I American thoroughbred horse race for horses age three and older over a distance of 1 ⁄ miles on the dirt held at Santa Anita Park in Arcadia, California in May.  The race currently offers a purse of $500,000.

Santa Anita Oaks: Santa Anita Oaks is an American Grade I Thoroughbred horse race held annually in early April at Santa Anita Park in Arcadia, California.  Open to three-year-old fillies willing to race 8.5 furlongs (1 ⁄ miles) on the dirt.  The race is a Grade I event with a current purse of $400,000 and has been a prep race to the Triple Tiara of Thoroughbred Racing, including the Kentucky Oaks, the Black-Eyed Susan Stakes and Mother Goose Stakes.

Supporting paragraphs: Abel Tasman (horse) Kentucky Oaks
Answer: $600,000