Question: Who is a former coach of a World No. 1 player, Elizabeth Smylie or Paul Annacone?

<P0-S0> Paul Annacone (born March 20, 1963) is an American former touring professional tennis player and current tennis coach. <P0-S1>  He is the former coach of open-era leader in Grand Slams Roger Federer and former World No. 1 Pete Sampras. <P0-S2>  Annacone is currently a coach at ProTennisCoach.com and a commentator at Tennis Channel <SEP> <P1-S0> Peter Christian Cain (born 20 November 1958) is an Australian pair skater who currently works as a coach. <P1-S1>  With sister Elizabeth Cain, he is the 1976 World Junior bronze medalist and a four-time Australian national champion. <P1-S2>  Their highest placement at the World Championships was 12th in 1977. <P1-S3>  They competed in the 1980 Winter Olympics, finishing eleventh. <P1-S4>  He is the uncle and former coach of Australian national champion Sean Carlow and father of American skater Ashley Cain. <P1-S5>  He also coaches Alexei Krasnozhon and Brooklee Han. <P1-S6>  He currently works as a coach in the Euless, Texas area. <SEP> <P2-S0> Elizabeth Smylie (née Sayers, born 11 April 1963), sometimes known as Liz Smylie, is a retired Australian professional tennis player. <P2-S1>  During her career, she won four Grand Slam titles, one of them in women's doubles and three in mixed doubles. <P2-S2>  She also won three singles titles and 36 doubles titles. <SEP> <P3-S0>  Rosewall was signed in 1956 by the promoter Jack Kramer, a former #1 player himself, to join his small band of touring professionals in 1957. <P3-S1>  1 player in the world. <P3-S2>  Kramer, however, initially "panicked" upon signing Rosewall.He was a cute little fellow with a dink serve, who operated mostly from the baseline. <P3-S3>  Rosewall became the world's best player upon Gonzales's semi-retirement in 1961 and held that position either by himself or sharing it with others for six years. <P3-S4>  "It was... obvious that Rosewall was not the pushover I had feared. <P3-S5>  I was afraid that Gorgo would eat him alive and put us out of business the rest of the way. <P3-S6>  Kramer agreed. <P3-S7>  Before their opening match in Melbourne, Kramer went to Gonzales and asked him to "carry" Rosewall, giving him a better share of the gate to gain his assent. <P3-S8>  Gonzales is still sometimes considered to be a candidate for the greatest tennis player of all time; he was the dominant player of the 1950s and still holds the men's all-time record of being ranked world No. 1 for eight years. <P3-S9> American tennis player Pancho Gonzales had a long-running rivalry with Australian Ken Rosewall. <P3-S10>  But like a lot of people I completely underestimated Rosewall. <P3-S11>  Gonzales did try to carry out his part of the deal for a few matches, but then called it off, telling Kramer that he was no longer able to play his normal game. <P3-S12>  (In fact, Gonzales only beat him 50–26, and it was always competitive.)" <P3-S13>  That great volley of his hadn't been developed yet. <P3-S14>  Six years older than Rosewall, 13 years later, in 1970, Gonzales defeated him in 6–4, 6–4, in the 199th and next-to-last match they ever played—Gonzales was 42 years old at the time and Rosewall was considered to be the co-No.