Input: Frederic Chopin
In 1827, soon after the death of Chopin's youngest sister Emilia, the family moved from the Warsaw University building, adjacent to the Kazimierz Palace, to lodgings just across the street from the university, in the south annex of the Krasinski Palace on Krakowskie Przedmiescie,[n 5] where Chopin lived until he left Warsaw in 1830.[n 6] Here his parents continued running their boarding house for male students; the Chopin Family Parlour (Salonik Chopinow) became a museum in the 20th century. In 1829 the artist Ambrozy Mieroszewski executed a set of portraits of Chopin family members, including the first known portrait of the composer.[n 7]

What year did Chopin leave Warsaw?
Output: 1830

Input: Article: The State of Israel is divided into six main administrative districts, known as mehozot (; singular: mahoz) Center, Haifa, Jerusalem, North, Southern, and Tel Aviv Districts, as well as the Judea and Samaria Area in the West Bank. All of the Judea and Samaria Area and parts of the Jerusalem and North districts are not recognized internationally as part of Israel. Districts are further divided into fifteen sub-districts known as nafot (; singular: nafa), which are themselves partitioned into fifty natural regions.

Now answer this question: What are these districts known as?

Output: mehozot

Article: The iTunes Store (introduced April 29, 2003) is an online media store run by Apple and accessed through iTunes. The store became the market leader soon after its launch and Apple announced the sale of videos through the store on October 12, 2005. Full-length movies became available on September 12, 2006.

Question: In what year was the iTunes store established?
Ans: 2003

Here is a question about this article: In 1729, Nader Shah, a chieftain and military genius from Khorasan, successfully drove out and conquered the Pashtun invaders. He subsequently took back the annexed Caucasian territories which were divided among the Ottoman and Russian authorities by the ongoing chaos in Iran. During the reign of Nader Shah, Iran reached its greatest extent since the Sassanid Empire, reestablishing the Iranian hegemony all over the Caucasus, as well as other major parts of the west and central Asia, and briefly possessing what was arguably the most powerful empire at the time.
What is the answer to this question: Nader Shah took back what territories that were annexed by the Ottomans and the Russians?
****
So... Caucasian territories

The problem: Answer a question about this article:
In 2010, Boston was estimated to have 617,594 residents (a density of 12,200 persons/sq mile, or 4,700/km2) living in 272,481 housing units a 5% population increase over 2000. The city is the third most densely populated large U.S. city of over half a million residents. Some 1.2 million persons may be within Boston's boundaries during work hours, and as many as 2 million during special events. This fluctuation of people is caused by hundreds of thousands of suburban residents who travel to the city for work, education, health care, and special events.
What can the population of Boston rech during special events?
****
The answer: 2 million

The problem: Answer a question about this article:
Commonly called 'light bulbs', lamps are the removable and replaceable part of a light fixture, which converts electrical energy into electromagnetic radiation. While lamps have traditionally been rated and marketed primarily in terms of their power consumption, expressed in watts, proliferation of lighting technology beyond the incandescent light bulb has eliminated the correspondence of wattage to the amount of light produced. For example, a 60 W incandescent light bulb produces about the same amount of light as a 13 W compact fluorescent lamp. Each of these technologies has a different efficacy in converting electrical energy to visible light. Visible light output is typically measured in lumens. This unit only quantifies the visible radiation, and excludes invisible infrared and ultraviolet light. A wax candle produces on the close order of 13 lumens, a 60 watt incandescent lamp makes around 700 lumens, and a 15-watt compact fluorescent lamp produces about 800 lumens, but actual output varies by specific design. Rating and marketing emphasis is shifting away from wattage and towards lumen output, to give the purchaser a directly applicable basis upon which to select a lamp.
What is the removable and replaceable part of a light fixture?
****
The answer:
light bulbs