In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
One example: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
Solution is here: How many books are there in the British Library?
Explanation: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

Now, solve this: Article: Spoiled for choice? That's likely how you'll feel after a mere day in Athens. The secret is in not trying to do everything. Instead, take in a couple of the tourist highlights and then get a feel for this attractive capital. An ancient sight The Acropolis always comes out at the top of the list of things to see in Athens. The most famous of the western world's ancient sights continue to impress tourists as they climb the marble steps and stand before the graceful Parthenon. Views from up here are amazing. A slow wander Plaka is the city's oldest neighborhood, resting on the slopes of the Acropolis with cafs and fascinating architecture. The streets are perfect for getting lost in, giving wanderers the chance to discover cafs and bars where they can down some strong coffee among locals. Plaka is at its best in the early evening. Acropolis House Pension is a preserved 19thcentury house that gives guests a glimpse into a Greek home. A market scene Varvakios Agora is Athens' central market. Locals come here to shop and look for everything needed in a Greek kitchen -- from olive oil to meat. This is a look at local life as well as a window into Greek cuisine. The meat market is also home to some of the city's best pubs, feeding traditional food to crowds of customers from all walks of society. A splash of nightlife Athenian nights are filled with music, dancing and dining. Perivoli Tou Ouranou is a club with a strong atmosphere. Filled with the sounds of violins and guitars pelting out traditional blueslike music, it's sad but also beautiful and lively.
Answer: 22:00.
Solution:
Which of the following is the best time to visit Plaka?