Question: What did Sisomphone Vongpharkdy do at the 2000 Summer Olympics opening ceremony as mandated by the Olympic Charter?
Sentence (from "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.
Relevant evidence: No