Question: What did Sisomphone Vongpharkdy do at the 2000 Summer Olympics opening ceremony as mandated by the Olympic Charter?

Context paragraphs:
1996 Summer Olympics opening ceremony: The opening ceremony of the 1996 Summer Olympics took place in the evening on Friday 19 July in the Centennial Olympic Stadium, Atlanta, United States.  As mandated by the Olympic Charter, the

Juha Hirvi: Juha Hirvi (born March 25, 1960 in Kymi) is a Finnish sport shooter.  He won the silver medal in men's 50 metre rifle three positions at the 2000 Summer Olympics.  He has also won two silver medals in ISSF World Shooting Championships.  He was the flag-bearer for Finland at the 2008 Beijing Summer Olympics opening ceremony.

1992 Summer Olympics opening ceremony: The opening ceremony of the 1992 Summer Olympics took place in the evening on Saturday 25 July in the Estadi Olímpic Lluís Companys, Barcelona, Spain.  As mandated by the Olympic Charter, the proceedings combined the formal and ceremonial opening of this international sporting event, including welcoming speeches, hoisting of the flags and the parade of athletes, with an artistic spectacle to showcase the host nation’s culture and history.

2012 Summer Olympics opening ceremony: The opening ceremony of the 2012 Summer Olympic Games took place on the evening of Friday 27 July in the Olympic Stadium, London.  As mandated by the Olympic Charter, the proceedings combined the formal ceremonial opening of this international sporting event (including welcoming speeches, hoisting of the flags and the parade of athletes) with an artistic spectacle to showcase the host nation's culture.  The 2012 Games were formally opened by Queen Elizabeth II.  The spectacle was entitled Isles of Wonder and directed by Academy Award-winning British film director Danny Boyle.

2000 Summer Olympics opening ceremony: The opening ceremony of the 2000 Summer Olympic games took place on Friday 15 September in Stadium Australia.  As mandated by the Olympic Charter, the proceedings combined the formal and ceremonial opening of this international sporting event, including welcoming speeches, hoisting of the flags and the parade of athletes, with an artistic spectacle to showcase the host nation’s culture and history.  For Sydney 2000, the Games were formally opened by Governor-General Sir William Deane.  The ceremony was described by IOC President Juan Antonio Samaranch as the most beautiful ceremony the world has ever seen.  It also represented several highlights of Australian culture and history, from sea creatures and flora/fauna to lawn mowers and other Australian cultural icons.  The Opening Ceremony had a cast of 12,687 people who took part in the ceremony.  Consistent with normal major production management, the music was pre-recorded under studio conditions to ensure its quality.

Sisomphone Vongpharkdy: Sisomphone Vongpharkdy (born 5 December 1977) is a Laotian runner who competed at the 1996 and 2000 Summer Olympics in the 4 × 100 metres relay and the 100m event respectively.  He was the flag bearer of Laos during the 2000 Summer Olympics opening ceremony.

1984 Summer Olympics opening ceremony: The opening ceremony of the 1984 Summer Olympic Games took place on the evening of Friday 28 July in the Los Angeles Memorial Coliseum, Los Angeles.  As mandated by the Olympic Charter, the proceedings combined the formal ceremonial opening of this international sporting event (including welcoming speeches, hoisting of the flags and the parade of athletes) with an artistic spectacle to showcase the host nation's culture.  The 1984 Games were formally opened by President Ronald Reagan.  The spectacle was in front of 92,516 attendants.  The ceremony was a $5 million production and titled Music of America.

Laure Kuetey: Laure Isabelle Kuetey (born 6 March 1971) is a Beninese sprinter who specializes in the Women's 100 meters and the Women's 200 metres events.  She competed at the 200 metres event in the 1996 Summer Olympics, and the 100 metres event in the 1992 and 2000 Summer Olympics respectively.  In addition, she was also the flag bearer for Benin in the 1996 and 2000 Summer Olympics opening ceremony.

2016 Summer Olympics opening ceremony: The opening ceremony of the 2016 Summer Olympics took place on the evening of Friday 5 August 2016 in the Maracanã Stadium, Rio de Janeiro, starting at 20:00 BRT (23:00 UTC).  As mandated by the Olympic Charter, the proceedings combined the formal ceremonial opening of this international sporting event (including welcoming speeches, hoisting of the flags and the parade of athletes, as well as a new feature—the presentation of the International Olympic Committee's Olympic Laurel distinction) with an artistic spectacle to showcase the host nation's culture and history.  The ceremony reportedly cost under $6,526,500 (£5 million/R$20,433,298)

Sarah Tondé: Sarah Tondé (born 30 October 1983) is a Burkinabé track and field athlete who specializes in the Women's 100 metres and Women's 200 metres events.  She competed at the 2000 Summer Olympics in the Women's 100 metres event at the age of 16, where she finished in 8th place at 12.56 seconds.  She was also the flag bearer of Burkina Faso during the 2000 Summer Olympics opening ceremony.

Supporting paragraphs: Sisomphone Vongpharkdy 2000 Summer Olympics opening ceremony
Answer: flag bearer of Laos