Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
One example is below.
Q: In 1582 the united provinces invited francis, duke of anjou to lead them; but after a failed attempt to take antwerp in 1583, the duke left the netherlands again. after the assassination of william of orange (10 july 1584), both henry iii of france and elizabeth i of england declined the offer of sovereignty. however, the latter agreed to turn the united provinces into a protectorate of england (treaty of nonsuch, 1585), and sent the earl of leicester as governor-general. this was unsuccessful and in 1588 the provinces became a confederacy. the union of utrecht is regarded as the foundation of the republic of the seven united provinces, which was not recognized by the spanish empire until the peace of westphalia in 1648.
A: In what year did francis, duke of anjou leave the netherlands?
Rationale: The generated question is perfect. Because the question is based on second sentence of the input passage and its answer is 1583.
Q: Have you ever been to the world's smallest bookstore? The World's Smallest Bookstore,whose official name is just these three words,sits quietly about 100 miles northeast of Toronto. The bookstore is about 10 feet by 10 feet,so it is easy to imagine how tiny it really is.The bookstore is open 24 hours a day.Inside the bookstore are various books,especially literary books and classic authors' works.So if you are looking for something less popular,you may get a bit disappointed there. Another special feature of this bookstore is that each book only costs three dollars.All the expenses are paid on the honor system,which means buyers should make a note of what they've bought and leave their money by themselves.So the tools of the trade in this bookstore are quite simple: pens,papers,light bulbs and a label-maker. In order to catch passers-by's attention,the billboards of the bookstore are several times bigger than the store itself.With these large eye-catchers,many people are willing to stop by and have a visit.
A:
What's the passage mainly about?