Problem: Chopin's mazurkas and waltzes are all in straightforward ternary or episodic form, sometimes with a coda. The mazurkas often show more folk features than many of his other works, sometimes including modal scales and harmonies and the use of drone basses. However, some also show unusual sophistication, for example Op. 63 No. 3, which includes a canon at one beat's distance, a great rarity in music.
What does Chopin's Op. 63 No. 3 have that is rare?
The answer is the following: a canon at one beat's distance

In 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it "a matter of national interest" to introduce HDTV to the US.
What aspect ratio did the MUSE system use when demonstrated in 1981?
5:3

Input: London
London's bus network is one of the largest in the world, running 24 hours a day, with about 8,500 buses, more than 700 bus routes and around 19,500 bus stops. In 2013, the network had more than 2 billion commuter trips per annum, more than the Underground. Around 850 million is taken in revenue each year. London has the largest wheelchair accessible network in the world and, from the 3rd quarter of 2007, became more accessible to hearing and visually impaired passengers as audio-visual announcements were introduced. The distinctive red double-decker buses are an internationally recognised trademark of London transport along with black cabs and the Tube.

How many buses does the London public bus network operate?
Output: more than 700

Input: Article: A few pubs have stage performances such as serious drama, stand-up comedy, musical bands, cabaret or striptease; however juke boxes, karaoke and other forms of pre-recorded music have otherwise replaced the musical tradition of a piano or guitar and singing.[citation needed]

Now answer this question: Along with karaoke, what type of prerecorded music is often found in pubs?

Output: juke boxes

Article: The torch was lit at a park outside at AT&T Park at about 1:17 pm PDT (20:17 UTC), briefly held aloft by American and Chinese Olympic officials. The relay descended into confusion as the first runner in the elaborately planned relay disappeared into a warehouse on a waterfront pier where it stayed for a half-an-hour. There were clashes between thousands of pro-China demonstrators, many of whom said they were bused in by the Chinese Consulate and other pro-China groups, and both pro-Tibet and Darfur protesters. The non-Chinese demonstrators were reported to have been swamped and trailed by angry crowds. Around 2 pm PDT (21:00 UTC), the torch resurfaced about 3 km (1.9 mi) away from the stadium along Van Ness Avenue, a heavily trafficked thoroughfare that was not on official route plans. Television reports showed the flame flanked by motorcycles and uniformed police officers. Two torchbearers carried the flame running slowly behind a truck and surrounded by Olympic security guards. During the torch relay, two torchbearers, Andrew Michael who uses a wheelchair and is the Vice President for Sustainable Development for the Bay Area Council and Director of Partnerships For Change, and an environmental advocate, Majora Carter, managed to display Tibetan flags in protest, resulting in their ejection from the relay. The closing ceremony at Justin Herman Plaza was canceled due to the presence of large numbers of protesters at the site. The torch run ended with a final stretch through San Francisco's Marina district and was then moved by bus to San Francisco International Airport for a makeshift closing ceremony at the terminal, from which the free media was excluded. San Jose Mercury News described the "deceiving" event as "a game of Where's Waldo, played against the landscape of a lovely city." International Olympic Committee President Jacques Rogge said the San Francisco relay had "fortunately" avoided much of the disruptions that marred the legs in London and Paris, but "was, however, not the joyous party that we had wished it to be."

Question: Where did the first relay runner disappear to with the torch??
Ans: a warehouse

Input: Himachal Pradesh
Though the state is deficient in food grains, it has gained a lot in other spheres of agricultural production such as seed potato, ginger, vegetables, vegetable seeds, mushrooms, chicory seeds, hops, olives and fig. Seed potato is mostly grown in the Shimla, Kullu and Lahaul areas. Special efforts are being made to promote cultivation of crops like olives, figs, hops, mushrooms, flowers, pistachio nuts, sarda melon and saffron. Solan is the largest vegetable producing district in the state. The district of Sirmaur is also famous for growing flowers, and is the largest producer of flowers in the state.

Who is the largest vegetable producing district in the state?
Output:
Solan