instruction:
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.
question:
The Nigerian Civil War, commonly known as the Biafran War (6 July 1967 -- 15 January 1970), was a war fought between the government of Nigeria and the secessionist state of Biafra. Biafra represented nationalist aspirations of the Igbo people, whose leadership felt they could no longer coexist with the Northern-dominated federal government. The conflict resulted from political, economic, ethnic, cultural and religious tensions which preceded Britain's formal decolonisation of Nigeria from 1960 to 1963. Immediate causes of the war in 1966 included a military coup, a counter-coup and persecution of Igbo living in Northern Nigeria. Control over oil production in the Niger Delta played a vital strategic role.
answer:
causes of nigerian civil war of 1967 pdf

question:
Built by King Henry VIII on the site of a leper hospital dedicated to Saint James the Less, the palace was secondary in importance to the Palace of Whitehall for most Tudor and Stuart monarchs. The palace increased in importance during the reigns of the early Georgian monarchy, but was displaced by Buckingham Palace in the late-18th and early-19th centuries. After decades of being used increasingly for only formal occasions, the move was formalised by Queen Victoria in 1837. Today the palace houses a number of official offices, societies and collections and all ambassadors and high commissioners to the United Kingdom are still accredited to the Court of St James's.
answer:
where did the royal family live before buckingham palace

question:
Washington, D.C., formally the District of Columbia and commonly referred to as Washington or D.C., is the capital of the United States of America. Founded after the American Revolution as the seat of government of the newly independent country, Washington was named after George Washington, first President of the United States and Founding Father. Washington is the principal city of the Washington metropolitan area, which has a population of 6,131,977. As the seat of the United States federal government and several international organizations, the city is an important world political capital. Washington is one of the most visited cities in the world, with more than 20 million annual tourists.
answer:
washington dc is called a symbol for the country why