Question: Do Sun Tiantian and Tom Gullikson have the same nationality ?

Context paragraphs:
Pam Teeguarden: Pam Teeguarden (born April 17, 1951) is a former American professional tennis player in the 1970s and 1980s, ranked in the top 20 from 1970–1975, according to "John Dolan's Women's Tennis Ultimate Guide", prior to computer rankings.  She won two Grand Slam Doubles Titles and was a quarter finalist in singles at the U.S. Open and The French Open.  Her father Jerry, a well known coach, helped Margaret Court win the coveted Grand Slam (all four Grand Slam titles in one year) in 1970 and Virginia Wade to her 1977 Wimbledon triumph.  Teeguarden was voted the "Most Watchable Player" based on play and appearance by a group of Madison Avenue advertising executives or "Mad Men" while playing at the US Open.  Teeguarden played in 19 consecutive US Opens, holding the record until Chris Evert played in 20.  She wore the first all black outfit in the history of tennis in 1975 at The Bridgestone Doubles Championships in Tokyo, starting a trend that is still popular today.  Teeguarden was the first woman tennis player signed by Nike.  She played on the victorious Los Angeles Strings Team Tennis team in 1981 and won the Team Tennis Mixed Doubles Division with Tom Gullikson in 1977; they were also runners-up in the league that year.

Sun Tiantian: Sun Tiantian (; ; born 12 October 1981) is a Chinese former professional tennis player.

Tom Gullikson: Tom Gullikson (born September 8, 1951) is a tennis coach and former professional tennis player from the United States.

1980 Stella Artois Championships – Doubles: Tim Gullikson and Tom Gullikson were the defending champions but lost in the semifinals to Rod Frawley and Geoff Masters.

1983 Tokyo Indoor – Doubles: Tim Gullikson and Tom Gullikson were the defending champions, but lost in the quarterfinals this year.

1985 Donnay Indoor Championships – Doubles: Tim Gullikson and Tom Gullikson were the defending champions, but did not participate this year.

1983 Wimbledon Championships – Men's Doubles: The Men's Doubles tournament at the 1983 Wimbledon Championships was held from August 30 to September 11, 1983, on the outdoor grass courts at the All England Lawn Tennis and Croquet Club in the Wimbledon district of London, England.  Peter McNamara and Paul McNamee were the defending champions.  Peter McNamara did not compete this year while McNamee partnered with Brian Gottfried, losing in the quarterfinals to Anders Jarryd and Hans Simonsson.  Peter Fleming and John McEnroe won the title, defeating Tim Gullikson and Tom Gullikson in the final.

1983 Bristol Open – Doubles: Tim Gullikson and Tom Gullikson were the defending champions, but Tim Gullikson did not participate this year.  Tom Gullikson partnered Johan Kriek, losing in the final.

1985 US Open – Mixed Doubles: Manuela Maleeva and Tom Gullikson were the defending champions but lost in the second round to Kathleen Horvath and Leif Shiras.

2009 Australian Open – Mixed Doubles: Sun Tiantian and Nenad Zimonjić were the defending champions, but Sun chose not to participate, and only Zimonjić competed that year.  Zimonjić partnered with Anna-Lena Grönefeld, but lost in the first round to Cara Black and Leander Paes.

Supporting paragraphs: Sun Tiantian Tom Gullikson
Answer: no