Input: Compact disc
Meanwhile, with the advent and popularity of Internet-based distribution of files in lossily-compressed audio formats such as MP3, sales of CDs began to decline in the 2000s. For example, between 2000 - 2008, despite overall growth in music sales and one anomalous year of increase, major-label CD sales declined overall by 20%, although independent and DIY music sales may be tracking better according to figures released 30 March 2009, and CDs still continue to sell greatly. As of 2012, CDs and DVDs made up only 34 percent of music sales in the United States. In Japan, however, over 80 percent of music was bought on CDs and other physical formats as of 2015.

When did CD sales experience their original decline?
Output: the 2000s

Input: Department store
In the 21st century the most famous department store in Russia is GUM in Moscow, followed by TsUM and the Petrovsky Passage. Other popular stores are Mega (shopping malls), Stockmann, and Marks & Spencer. Media Markt, M-video, Technosila, and White Wind (Beliy Veter) sell large number of electronic devices. In St. Petersburg The Passage has been popular since the 1840s. 1956 Soviet film Behind Store Window (За витриной универмага) on YouTube depicts operation of a Moscow department store in 1950's.

In what city is the Passage located?
Output: St. Petersburg

Input: Geological history of Earth
The most-commonly accepted theory is that these events were triggered by the onset of an ice age, in the Hirnantian faunal stage that ended the long, stable greenhouse conditions typical of the Ordovician. The ice age was probably not as long-lasting as once thought; study of oxygen isotopes in fossil brachiopods shows that it was probably no longer than 0.5 to 1.5 million years. The event was preceded by a fall in atmospheric carbon dioxide (from 7000ppm to 4400ppm) which selectively affected the shallow seas where most organisms lived. As the southern supercontinent Gondwana drifted over the South Pole, ice caps formed on it. Evidence of these ice caps have been detected in Upper Ordovician rock strata of North Africa and then-adjacent northeastern South America, which were south-polar locations at the time.

What type of climate was normal in the Ordovician period?
Output: stable greenhouse conditions

Input: Greece
Greek cuisine is characteristic of the healthy Mediterranean diet, which is epitomized by dishes of Crete. Greek cuisine incorporates fresh ingredients into a variety of local dishes such as moussaka, stifado, Greek salad, fasolada, spanakopita and souvlaki. Some dishes can be traced back to ancient Greece like skordalia (a thick purée of walnuts, almonds, crushed garlic and olive oil), lentil soup, retsina (white or rosé wine sealed with pine resin) and pasteli (candy bar with sesame seeds baked with honey). Throughout Greece people often enjoy eating from small dishes such as meze with various dips such as tzatziki, grilled octopus and small fish, feta cheese, dolmades (rice, currants and pine kernels wrapped in vine leaves), various pulses, olives and cheese. Olive oil is added to almost every dish.

What is a characteristic of the Mediterranean diet? 
Output:
Greek cuisine