input: Please answer the following: Extract the answer to the question from the following context. Question: What was the density of particulate matter in the air a day after smog had entered Central and Eastern parts of China? Context: A dense wave of smog began in the Central and Eastern part of China on 2 December 2013 across a distance of around 1,200 kilometres (750 mi), including Tianjin, Hebei, Shandong, Jiangsu, Anhui, Shanghai and Zhejiang. A lack of cold air flow, combined with slow-moving air masses carrying industrial emissions, collected airborne pollutants to form a thick layer of smog over the region. The heavy smog heavily polluted central and southern Jiangsu Province, especially in and around Nanjing, with its AQI pollution Index at "severely polluted" for five straight days and "heavily polluted" for nine. On 3 December 2013, levels of PM2.5 particulate matter average over 943 micrograms per cubic metre, falling to over 338 micrograms per cubic metre on 4 December 2013. Between 3:00 pm, 3 December and 2:00pm, 4 December local time, several expressways from Nanjing to other Jiangsu cities were closed, stranding dozens of passenger buses in Zhongyangmen bus station. From 5 to 6 December, Nanjing issued a red alert for air pollution and closed down all kindergarten through middle schools. Children's Hospital outpatient services increased by 33 percent; general incidence of bronchitis, pneumonia, upper respiratory tract infections significantly increased. The smog dissipated 12 December. Officials blamed the dense pollution on lack of wind, automobile exhaust emissions under low air pressure, and coal-powered district heating system in North China region. Prevailing winds blew low-hanging air masses of factory emissions (mostly SO2) towards China's east coast.
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output: 943 micrograms per cubic metre

Please answer this: Extract the answer to the question from the following context. Question: What was the average price of a one-bedroom apartment in US dollars? Context: As of 2003[update] the average price to rent an average apartment in Bern was 1108.92 Swiss francs (CHF) per month (US$890, £500, €710 approx. exchange rate from 2003). The average rate for a one-room apartment was 619.82 CHF (US$500, £280, €400), a two-room apartment was about 879.36 CHF (US$700, £400, €560), a three-room apartment was about 1040.54 CHF (US$830, £470, €670) and a six or more room apartment cost an average of 2094.80 CHF (US$1680, £940, €1340). The average apartment price in Bern was 99.4% of the national average of 1116 CHF. The vacancy rate for the municipality, in 2010[update], was 0.45%.
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Answer: US$500

Problem: Extract the answer to the question from the following context. Question: When looking at the largest education level, what percentage of pupils did not speak the language? Context: During the 2009–10 school year, there were a total of 10,979 pupils attending classes in Bern. There were 89 kindergarten classes with a total of 1,641 pupils in the municipality. Of the kindergarten pupils, 32.4% were permanent or temporary residents of Switzerland (not citizens) and 40.2% have a different mother language than the classroom language. The municipality had 266 primary classes and 5,040 pupils. Of the primary pupils, 30.1% were permanent or temporary residents of Switzerland (not citizens) and 35.7% have a different mother language than the classroom language. During the same year, there were 151 lower secondary classes with a total of 2,581 pupils. There were 28.7% who were permanent or temporary residents of Switzerland (not citizens) and 32.7% have a different mother language than the classroom language.

A: 35.7%

Problem: Given the question: Extract the answer to the question from the following context. Question: What is time transformed into? Context: During encoding, 576 time-domain samples are taken and are transformed to 576 frequency-domain samples.[clarification needed] If there is a transient, 192 samples are taken instead of 576. This is done to limit the temporal spread of quantization noise accompanying the transient. (See psychoacoustics.)
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The answer is:
frequency

input question: Extract the answer to the question from the following context. Question: What was the average price of a two-bedroom apartment in US dollars? Context: As of 2003[update] the average price to rent an average apartment in Bern was 1108.92 Swiss francs (CHF) per month (US$890, £500, €710 approx. exchange rate from 2003). The average rate for a one-room apartment was 619.82 CHF (US$500, £280, €400), a two-room apartment was about 879.36 CHF (US$700, £400, €560), a three-room apartment was about 1040.54 CHF (US$830, £470, €670) and a six or more room apartment cost an average of 2094.80 CHF (US$1680, £940, €1340). The average apartment price in Bern was 99.4% of the national average of 1116 CHF. The vacancy rate for the municipality, in 2010[update], was 0.45%.???
output answer: US$700

input question: Extract the answer to the question from the following context. Question: __ have long sticky tongues for extracting food Context: Incubation, which optimises temperature for chick development, usually begins after the last egg has been laid. In monogamous species incubation duties are often shared, whereas in polygamous species one parent is wholly responsible for incubation. Warmth from parents passes to the eggs through brood patches, areas of bare skin on the abdomen or breast of the incubating birds. Incubation can be an energetically demanding process; adult albatrosses, for instance, lose as much as 83 grams (2.9 oz) of body weight per day of incubation. The warmth for the incubation of the eggs of megapodes comes from the sun, decaying vegetation or volcanic sources. Incubation periods range from 10 days (in woodpeckers, cuckoos and passerine birds) to over 80 days (in albatrosses and kiwis).???
output answer:
woodpeckers