Some context: Springfield was born Mary Isobel Catherine Bernadette O'Brien on 16 April 1939 in West Hampstead, the second child of Gerard Anthony "OB" O'Brien (1904-1979) and Catherine Anne "Kay" O'Brien (nee Ryle; 1900-1974). Her older brother, Dionysius P. A. O'Brien (born 2 July 1934), was later known as Tom Springfield. Springfield's father, who had been raised in British India, worked as a tax accountant and consultant. Her mother came from an Irish family, originally from Tralee, County Kerry, that included a number of journalists.
After finishing school, Springfield sang with Tom in local folk clubs. In 1957 the pair worked together at holiday camps. The following year Springfield responded to an advertisement in The Stage to join The Lana Sisters, an "established sister act", with Iris 'Riss' Long (aka Riss Lana, Riss Chantelle) and Lynne Abrams (not actually sisters). She had changed her name to Shan, and "cut her hair, lost the glasses, experimented with makeup, fashion" to become one of the 'sisters'. As a member of the pop vocal trio, Springfield developed skills in harmonising and microphone technique and recorded, performed on TV, and played at live shows in the United Kingdom and at United States Air Force bases in continental Europe.  In 1960, Springfield left The Lana Sisters and formed a pop-folk trio, The Springfields, with Tom and Reshad Feild (both ex-The Kensington Squares), who was replaced by Mike Hurst in 1962. The trio chose their name while rehearsing in a field in Somerset in the springtime and took the stage names of Dusty, Tom, and Tim Springfield. Intending to make an authentic US album, the group travelled to Nashville, Tennessee, to record Folk Songs from the Hills. The local music that Springfield heard during this visit, in particular "Tell Him," helped turn her style from folk and country towards pop music rooted in rhythm and blues. The band was voted the "Top British Vocal Group" by the New Musical Express poll in 1961 and 1962. During early 1963, The Springfields recorded their last UK Top 5 hit, "Say I Won't Be There". The group appeared on ITV Associated Rediffusion's popular music TV series Ready Steady Go!.  Springfield left the band after their final concert in October 1963. After the Springfields disbanded, Tom continued songwriting and producing for other artists, including Australian folk-pop group The Seekers, mid-1960s hits "I'll Never Find Another You" and "The Carnival is Over" (lyrics only), and he co-wrote their "Georgy Girl". He also wrote additional tracks for Springfield and released his own solo material.
What was the ad?
A: to join The Lana Sisters, an "established sister act",

Some context: Affirmed (February 21, 1975 - January 12, 2001) was an American Thoroughbred racehorse who was the eleventh winner of the United States Triple Crown of Thoroughbred Racing. Affirmed was also known for his famous rivalry with Alydar, whom he met ten times, including in all three Triple Crown races. Affirmed was the last horse to win the Triple Crown for a 37-year period, which was ended in 2015 by American Pharoah. Affirmed won fourteen Grade
Affirmed returned to racing in early August in the Jim Dandy Stakes at Saratoga. He nearly became an upset loser to the front-running Sensitive Prince but closed in the last 100 yards in a race that Laz Barrera considered one of Affirmed's finest efforts.  Alydar and Affirmed met once more, in the Travers Stakes at Saratoga. Affirmed, piloted by Hall of Fame jockey Laffit Pincay substituting for the injured Cauthen, cut off Alydar entering the far turn, causing his rival to hit the rail and almost go down, losing six lengths before recovering his stride. Affirmed finished first but was disqualified and placed second. The horses never met again, and the final winning tally stood at Affirmed 7, Alydar 3.  Affirmed then prepared to meet another major rival: 1977 Triple Crown winner Seattle Slew. The 1978 Marlboro Cup Invitational Handicap marked the first time in racing history that two Triple Crown winners ever met in a race. Seattle Slew was a speed horse and got the first quarter mile in 24 seconds under jockey Angel Cordero, who never allowed Affirmed to get close. Seattle Slew won by three lengths in 1:45 4/5 for the one-turn mile and 1/8. The two horses met once more, in the Jockey Club Gold Cup. This time, Affirmed was to be aided by his stablemate Life's Hope, who was entered in the race to extend Seattle Slew in the early stages. However, Affirmed's saddle slipped during the race, leaving his jockey with almost no control. He tired to finish unplaced for the only time in his career as Exceller and jockey Willie Shoemaker defeated Seattle Slew by a nose.  As a three-year-old, Affirmed won 8 of 11 starts with 2 seconds and 1 unplaced run, for earnings of $901,541. He was named Horse of the Year despite the losses to Alydar, Seattle Slew, and Exceller, and was also named the American Champion Three-Year-Old Male Horse.
What happened after the triple crown
A:
Affirmed returned to racing in early August in the Jim Dandy Stakes at Saratoga.