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]: British Summer Time was first established by the Summer Time Act 1916, after a campaign by builder William Willett. His original proposal was to move the clocks forward by 80 minutes, in 20-minute weekly steps on Sundays in April and by the reverse procedure in September. In 1916, BST began on 21 May and ended on 1 October. Willett never got to see his idea implemented, for he died in early 1915.
[EX A]: when was daylight saving introduced in the uk

[EX Q]: This doctrine was defined dogmatically at the First Ecumenical Council of the Vatican of 1869 -- 1870, but had been defended before that, existing already in medieval theology and being the majority opinion at the time of the Counter-Reformation.
[EX A]: when did the doctrine of papal infallibility begin

[EX Q]: The Milky Way is a barred spiral galaxy with a diameter between 150,000 and 200,000 light-years (ly). It is estimated to contain 100 -- 400 billion stars. There are probably at least 100 billion planets in the Milky Way. The Solar System is located within the disk, 26,490 ( 100) light-years from the Galactic Center, on the inner edge of the Orion Arm, one of the spiral-shaped concentrations of gas and dust. The stars in the innermost 10,000 light-years form a bulge and one or more bars that radiate from the bulge. The galactic center is an intense radio source known as Sagittarius A *, likely a supermassive black hole of 4.100 ( 0.034) million solar masses.
[EX A]:
how many planets in our milky way galaxy