Input: Read this: Passive air defence is defined by NATO as "Passive measures taken for the physical defence and protection of personnel, essential installations and equipment in order to minimize the effectiveness of air and/or missile attack". It remains a vital activity by ground forces and includes camouflage and concealment to avoid detection by reconnaissance and attacking aircraft. Measures such as camouflaging important buildings were common in the Second World War. During the Cold War the runways and taxiways of some airfields were painted green.
Question: Which group is heavily responsible for passive air defence?

Output: ground forces


QUES: Season four premiered on January 18, 2005; this was the first season of the series to be aired in high definition, although the finale of season three was also aired in high definition. The number of those attending the auditions by now had increased to over 100,000 from the 10,000 of the first season. The age limit was raised to 28 in this season, and among those who benefited from this new rule were Constantine Maroulis and Bo Bice, the two rockers of the show.

What  was the first full season of American Idol to air in high definition?
What is the answer?
ANS: Season four


QUES: In the 1874 general election, Disraeli was returned to power. He passed the Public Worship Regulation Act 1874, which removed Catholic rituals from the Anglican liturgy and which Victoria strongly supported. She preferred short, simple services, and personally considered herself more aligned with the presbyterian Church of Scotland than the episcopal Church of England. He also pushed the Royal Titles Act 1876 through Parliament, so that Victoria took the title "Empress of India" from 1 May 1876. The new title was proclaimed at the Delhi Durbar of 1 January 1877.
What year was the Public Worship Regulation Act passed?

ANS: unanswerable


The city is home to the longest surviving stretch of medieval walls in England, as well as a number of museums such as Tudor House Museum, reopened on 30 July 2011 after undergoing extensive restoration and improvement; Southampton Maritime Museum; God's House Tower, an archaeology museum about the city's heritage and located in one of the tower walls; the Medieval Merchant's House; and Solent Sky, which focuses on aviation. The SeaCity Museum is located in the west wing of the civic centre, formerly occupied by Hampshire Constabulary and the Magistrates' Court, and focuses on Southampton's trading history and on the RMS Titanic. The museum received half a million pounds from the National Lottery in addition to interest from numerous private investors and is budgeted at £28 million.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What's the name of the aviation museum in Southampton?
Ah, so.. Solent Sky


Question: Plants and various other groups of photosynthetic eukaryotes collectively known as "algae" have unique organelles known as chloroplasts. Chloroplasts are thought to be descended from cyanobacteria that formed endosymbiotic relationships with ancient plant and algal ancestors. Chloroplasts and cyanobacteria contain the blue-green pigment chlorophyll a. Chlorophyll a (as well as its plant and green algal-specific cousin chlorophyll b)[a] absorbs light in the blue-violet and orange/red parts of the spectrum while reflecting and transmitting the green light that we see as the characteristic colour of these organisms. The energy in the red and blue light that these pigments absorb is used by chloroplasts to make energy-rich carbon compounds from carbon dioxide and water by oxygenic photosynthesis, a process that generates molecular oxygen (O2) as a by-product.
Try to answer this question if possible: What organelles are unique to algae?
Answer: chloroplasts


Input: Read this: Finally, in the 1990s, Internet Protocol-based videoconferencing became possible, and more efficient video compression technologies were developed, permitting desktop, or personal computer (PC)-based videoconferencing. In 1992 CU-SeeMe was developed at Cornell by Tim Dorcey et al. In 1995 the first public videoconference between North America and Africa took place, linking a technofair in San Francisco with a techno-rave and cyberdeli in Cape Town. At the Winter Olympics opening ceremony in Nagano, Japan, Seiji Ozawa conducted the Ode to Joy from Beethoven's Ninth Symphony simultaneously across five continents in near-real time.
Question: When did Nagano Japan take part in the first public video-conference linking two continents?

Output:
unanswerable