Question: Which tennis player is from Argentina, Martina Hingis or Gisela Dulko?

Context paragraphs:
2007 Forest Hills Tennis Classic: The 2007 Forest Hills Tennis Classic was a women's tennis tournament played on outdoor hard courts.  It was the 4th edition of the Forest Hills Tennis Classic, and was part of the Tier IV Series of the 2007 WTA Tour.  It took place in Forest Hills, New York City, New York, United States from August 21 through August 25, 2007.  Gisela Dulko won the singles title.

Martina Hingis: Martina Hingis (born 30 September 1980) is a Swiss professional tennis player, a former world No. 1 singles player and currently ranked world No. 2 in doubles by the WTA.  She has spent a total of 209 weeks as the singles No. 1 and has won five Grand Slam singles titles, thirteen Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and seven Grand Slam mixed doubles titles; for a combined total of twenty-five major titles.  In addition, she has won the season-ending WTA Championships two times in singles and three times in doubles, and an Olympic silver medal.

2007 GDF Suez Grand Prix – Doubles: Following are the results of the 2007 GDF Suez Grand Prix – Doubles tennis competition.  The 2007 Gaz de France Budapest Grand Prix was a WTA Tour tennis event held on April 21–29, 2007, won by Gisela Dulko.

Meredith McGrath: 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.

Eduardo Schwank: Eduardo Jonatan Schwank (born 23 April 1986) is a retired professional tennis player from Argentina.  In 2011, he reached the finals of the French Open in men's doubles partnering Juan Sebastian Cabal and of the US Open in mixed doubles partnering Gisela Dulko.  He was coached by Javier Nalbandian, the brother of David Nalbandian.

Gisela Dulko career statistics: This is a list of the main career statistics of professional Argentine tennis player Gisela Dulko

2007 Budapest Grand Prix: The 2007 Gaz de France Budapest Grand Prix was a WTA Tour tennis event held on April 21–29, 2007, won by Gisela Dulko.

Cho Yoon-jeong: Cho Yoon-jeong (Korean: 조윤정 , born 2 April 1979) is a former South Korean tennis player.  Cho won one doubles title during her career on the WTA Tour, at Seoul in 2004.  Her best Grand Slam performance was when she made the third round of the 2005 U.S. Open, by defeating Arantxa Parra Santonja in three sets in the first round, upsetting the 27th seed Gisela Dulko in the second round, and fell, 6–0, 6–7(4) to number 7 Justine Henin-Hardenne.  She reached career-high rankings of No. 45 in singes (in July 2003), and No. 98 in doubles (in September 2003).  Cho Yoon-jeong retired from tennis 2008.

Gisela Dulko: Gisela Dulko (] ; born 30 January 1985, in Tigre) is a retired professional tennis player from Argentina.  Although she enjoyed modest success in singles, reaching world no. 26 and winning four WTA Tour titles, her speciality was doubles, where she achieved a world no. 1 ranking.  Partnering with Flavia Pennetta, Dulko won the 2010 WTA Tour Championships and the 2011 Australian Open in doubles.  Dulko also reached the mixed doubles final at the 2011 US Open, with Edward Schwank.  She is remembered for her ability to upset the big names on the tour, such as Maria Sharapova in the second round of Wimbledon in 2009; and Samantha Stosur in the third round of Roland Garros in 2011.  She also beat Martina Navratilova in the second round of Wimbledon in 2004 in Navratilova's final Grand Slam singles match.

Matea Mezak: Matea Mezak (born 5 March 1985) is a Croatian professional tennis player.  She has been on the ITF circuit since 2004, with six doubles titles and five singles wins.  Mezak, along with Svetlana Kuznetsova, reached 2002 Australian Open junior doubles competition and lost to Indonesian Angelique Widjaja and Argentine Gisela Dulko.

Supporting paragraphs: Martina Hingis Gisela Dulko
Answer: Gisela Dulko