This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Ex Input:
The timing of migration seems to be controlled primarily by changes in day length. Migrating birds navigate using celestial cues from the sun and stars, the earth's magnetic field, and probably also mental maps.

Ex Output:
What causes the timing of migration?


Ex Input:
John Knox (1505–1572), a Scot who had spent time studying under Calvin in Geneva, returned to Scotland and urged his countrymen to reform the Church in line with Calvinist doctrines. After a period of religious convulsion and political conflict culminating in a victory for the Protestant party at the Siege of Leith the authority of the Church of Rome was abolished in favour of Reformation by the legislation of the Scottish Reformation Parliament in 1560. The Church was eventually organised by Andrew Melville along Presbyterian lines to become the national Church of Scotland. King James VI and I moved the Church of Scotland towards an episcopal form of government, and in 1637, James' successor, Charles I and William Laud, the Archbishop of Canterbury, attempted to force the Church of Scotland to use the Book of Common Prayer. What resulted was an armed insurrection, with many Scots signing the Solemn League and Covenant. The Covenanters would serve as the government of Scotland for nearly a decade, and would also send military support to the Parliamentarians during the English Civil War. Following the restoration of the monarchy in 1660, Charles II, despite the initial support that he received from the Covenanters, reinstated an episcopal form of government on the church.

Ex Output:
What year did John Knox past away?


Ex Input:
There are many missionary groups operating in the country, including Lutherans, Baptists, Catholics, Grace Brethren, and Jehovah's Witnesses. While these missionaries are predominantly from the United States, France, Italy, and Spain, many are also from Nigeria, the Democratic Republic of the Congo, and other African countries. Large numbers of missionaries left the country when fighting broke out between rebel and government forces in 2002–3, but many of them have now returned to continue their work.

Ex Output:

What religious groups operate in CAR?