In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

[EX Q]: When Nadal was 12, he won the Spanish and European tennis titles in his age group and was playing tennis and football all the time. Nadal's father made him choose between football and tennis so that his school work would not deteriorate entirely. Nadal said: 'I chose tennis. Football had to stop straight away.'
[EX A]: where did rafael nadal win his first tennis title

[EX Q]: Shanghai (Chinese: 上海; Wu Chinese: Wu pronunciation; Mandarin: (ʂâŋ. xài) (listen)) is one of the four municipalities under the direct administration of the central government of China, the largest city in China by population, and the second most populous city proper in the world, with a population of more than 24 million as of 2017. It is a global financial centre and transport hub, with the world's busiest container port. Located in the Yangtze River Delta, it sits on the south edge of the estuary of the Yangtze in the middle portion of the East China coast. The municipality borders the provinces of Jiangsu and Zhejiang to the north, south and west, and is bounded to the east by the East China Sea.
[EX A]: where is shanghai located on the world map

[EX Q]: The Vietnam War (Vietnamese: Chiến tranh Việt Nam), also known as the Second Indochina War, and known in Vietnam as the Resistance War Against America (Vietnamese: Kháng chiến chống Mỹ) or simply the American War, was a war that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam and the government of South Vietnam. The North Vietnamese army was supported by the Soviet Union, China and other communist allies and the South Vietnamese army was supported by the United States, South Korea, Australia, Thailand and other anti-communist allies. The war is therefore considered a Cold War-era proxy war.
[EX A]:
when did north and south vietnam start fighting

