Question: Are Lucie Hradecká and Jonas Björkman of the same nationality?

Context paragraphs:
2009 If Stockholm Open – Doubles: Jonas Björkman and Kevin Ullyett were the defending champion, but Björkman was retired in November 2008. Ullyett partnered up with Bruno Soares, and they won in the final 6–4, 7–6 against Simon Aspelin and Paul Hanley.

2009 BNP Paribas Masters – Doubles: Jonas Björkman & Kevin Ullyett were the defending champions, but Björkman retired in 2008.

Lucie Hradecká: Lucie Hradecká (] ; born 21 May 1985 in Prague) is a professional tennis player from the Czech Republic.  In her career, Hradecká has won 19 WTA doubles titles, and two Grand Slam titles, the 2011 French Open and the 2013 US Open, partnered both times by fellow Czech Andrea Hlaváčková.  The pair are also the 2012 Olympic silver medallists in doubles.  She has also won a mixed doubles Grand Slam title, the 2013 French Open with František Čermák.  Her biggest singles career highlight to date was defeating former world number one Ana Ivanovic in the first round of the 2015 Australian Open.

Jonas Björkman: Jonas Lars Björkman (] ; born 23 March 1972, Alvesta, Sweden) is a former World No. 4 Swedish professional tennis player.  He is also a former World No. 1 in doubles.  Björkman retired from professional tennis after competing at the 2008 Tennis Masters Cup Doubles championships.

2011 Dow Corning Tennis Classic – Doubles: Laura Granville and Lucie Hradecká were the defending champions, however Granville did not participate.  Lucie Hradecká partnered up with Marina Erakovic and lost in the first round to Beatrice Capra and Coco Vandeweghe

2003 Canada Masters – Doubles: The 2003 Canada Masters – Doubles was the men's doubles event of the one hundred and fourteenth edition of the Canada Masters; a WTA Tier I tournament and the most prestigious men's tennis tournament held in Canada.  Bob Bryan and Mike Bryan were the defending champions but lost in the semifinals to Jonas Björkman and Todd Woodbridge.  Mahesh Bhupathi and Max Mirnyi won in the final 6–3, 7–6 against Björkman and Woodbridge.

2008 Banka Koper Slovenia Open – Doubles: Lucie Hradecká and Renata Voráčová were the defending champions, but Voráčová chose not to participate, and only Hradecká competed that year.  Hradecká partnered up with Andreja Klepač, but they lost in the quarterfinals to Vera Dushevina and Ekaterina Makarova.

1999 Australian Open – Men's Doubles: Jonas Björkman and Jacco Eltingh were the defending champions, but Eltingh did not compete this year. <br>Björkman teamed up with Patrick Rafter, and they won the title defeating the first-seeded Indian team of Mahesh Bhupathi and Leander Paes in the final, 6–3, 4–6, 6–4, 6–7, 6–4.  This would be Rafter's only grand slam doubles title.

2005 Swedish Open – Doubles: Mahesh Bhupathi and Jonas Björkman were the defending champions.  Bhupathi did not participate this year.  Björkman partnered Joachim Johansson.

2005 BNP Paribas Masters – Doubles: Jonas Björkman and Todd Woodbridge were the defending champions, but did not participate together this year.  Björkman partnered Max Mirnyi, losing in the first round.  Woodbridge retired from professional tennis earlier in the year.

Supporting paragraphs: Lucie Hradecká Jonas Björkman
Answer: no