user: Definition: In this task, you are given a set of context paragraph and some supporting facts to answer a question. Your task is to generate answer for given question based on set of context paragraphs and supporting facts.
Input: Context_1 : Patricia Tarabini (born 6 August 1968) is an Argentine former tennis player. Tarabini represented her country and won the bronze Olympic medal at the 2004 Athens games, with Paola Suárez, where they lost 7–9 in the third set to eventual gold medalists from China, Sun Tiantian and Li Ting. On May 9, 1988, Patricia reached her highest singles ranking; world number 29. Tarabini's highest doubles ranking was world number 12, which she achieved on August 17, 1998. Patricia turned pro in 1986, and won a total of 15 top-level doubles titles in her career. She is the 1996 French Open mixed doubles champion, which she won with Javier Frana. Context_2 : "FHM"'s 100 Sexiest Women was an annual listing compiled by the monthly British men's lifestyle magazine "FHM". The list was compiled each year by the magazine based on votes from their readers on women whom they believed to the "sexiest". Each list was first announced by "FHM" through both a dedicated issue of their magazine and a section on their official website, FHM.com. The first list was published in 1995 and was voted for by a panel of 250 judges; the inaugural winner was the German supermodel Claudia Schiffer. From 1996 onwards, the poll was instead voted for by the general public, with, at its height, several million votes being cast each year. Subsequent winners included the Russian tennis player Anna Kournikova, the American actress Halle Berry, and Jennifer Lopez. At 36 years old, Berry was the oldest woman ever to top the listing, while Lopez was the first to top it more than once. The list ran every year from 1995 to 2015; by the time "FHM" ceased publication in January 2016, the 100 Sexiest Women list had been compiled 21 times. Context_3 : Anna Kournikova's Smash Court Tennis, known in Japan as Smash Court 2 (スマッシュコート2 , Sumasshu Kōto Tsū ) , is a tennis video game developed by Namco for the PlayStation. It is the second title in Namco's "Smash Court" series of games. The game was released in Japan in November 1998 and was later released in Europe in 1999, featuring the likeness of professional tennis player Anna Kournikova. Context_4 : Anna Sergeyevna Kournikova (Russian: А́нна Серге́евна Ку́рникова ; ] ; born 7 June 1981) is a Russian former professional tennis player. Her appearance and celebrity status made her one of the best known tennis stars worldwide. At the peak of her fame, fans looking for images of Kournikova made her name one of the most common search strings on Google Search. Context_5 : Evgeny Evgenyevich Korolev (Russian: Евге́ний Евге́ньевич Королёв ; born 14 February 1988) is Kazakhstani tennis player and the cousin of former Russian player Anna Kournikova. He began playing tennis at age four with his father, and picked up his first ATP points at age 15 in three German challenger events. He can speak Russian, German, English and Spanish. Context_6 : Anna Kournikova (named by its author as "Vbs.OnTheFly Created By OnTheFly") was a computer worm written by a 20-year-old Dutch student named Jan de Wit --who called himself 'OnTheFly'-- on February 11, 2001. It was designed to trick email users into opening a mail message purportedly containing a picture of the tennis player Anna Kournikova, while actually hiding a malicious program. The worm arrives in an email with the subject line "Here you have, ;0)" and an attached file called AnnaKournikova.jpg.vbs. When launched under Microsoft Windows the file does not display a picture of Anna Kournikova but launches a viral Visual Basic Script that forwards itself to everybody in the Microsoft Outlook address book of the victim. Context_7 : Sun Tiantian (; ; born 12 October 1981) is a Chinese former professional tennis player. Context_8 : Meredith McGrath (born April 28, 1971) is a former professional tennis player. She was born in Midland, Michigan, USA and made her debut on the Women's Tennis Association tour in 1988. In her eight-year professional career Meredith achieved career-high world rankings of #18 in singles and #4 in doubles. She notched victories over such players as Martina Navratilova, Martina Hingis, Anna Kournikova, Jana Novotna, Arantxa Sanchez Vicario, and Gigi Fernandez. The pinnacle of her career came in reaching the singles semi-finals and doubles finals at the 1996 Wimbledon Championships. In the singles she defeated Mana Endo, Amanda Coetzer, Nancy Feber, Katarína Studeníková and Mary Joe Fernandez before losing to Arantxa Sánchez Vicario. An injury the week prior to the 1996 Wimbledon Championships eventually ended her career. Meredith won the 1995 U.S. Open Mixed Doubles Championship (she was runner-up in 1989) and was the runner-up in the 1994 Australian Open Doubles Championship. Meredith won three WTA singles titles: Oklahoma City and Eastbourne in 1994 and Birmingham in 1996, 25 doubles titles. She retired with a 140–83 record in singles and a 189–40 record in doubles. Meredith was recognized by Tennis Magazine as the WTA Comeback Player of the Year as she overcame near career-ending injuries to having her most successful competitive season in 1996. In 1994 she received the WTA Tour Comeback Player of the Year. Context_9 : This is a list of the main career statistics of retired professional tennis player Anna Kournikova. Context_10 : Barry J. Klarberg (born March 4, 1961), CPA, is an American businessman. He is a professional business and wealth manager for athletes, entertainers and high-net-worth individuals. He is the founder and CEO of Monarch Business and Wealth Management, a full-service firm and family office that specializes in providing business and wealth management services. Klarberg has managed several prominent individuals including musician/actor Justin Timberlake, entrepreneur Russell Simmons, DJ and record producer Kaskade, NASCAR champion Kyle Busch, professional tennis player/model Anna Kournikova, NBA All-Star Kyle Lowry, MLB All-Star and Homerun Champion José Bautista, MLS All-Star and Captain of the United States men's national soccer team Michael Bradley, and NHL Hall-of-Famer Mark Messier. fact_1 : Sun Tiantian (; ; born 12 October 1981) is a Chinese former professional tennis player. fact_2 : Anna Sergeyevna Kournikova (Russian: А́нна Серге́евна Ку́рникова ; ] ; born 7 June 1981) is a Russian former professional tennis player. Question: Which tennis player is younger, Sun Tiantian or Anna Kournikova?
Output:

assistant: Sun Tiantian