<prompt> Bhala ukuqhubeka kwalesi sigaba - Eminyakeni emibili ngemva kokuphela kweNguquko Yamasiko nokufa kukaMao Zedong nokuwa kweQembu Labane ngo-1976, iChina yancintisana kuma-Olympic ayo okuqala  <response>: eBuenos Aires. Yilapho uLiu Wenzhe anqoba khona uJan Hein Donner waseNetherlands ngendlela eshaqisayo ngemva nje kokuhamba okungu-20. Ihlala iwumdlalo wakhe owaziwa kakhulu: 