This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Example Input: Passage: The Raleigh Parks and Recreation Department offers a wide variety of leisure opportunities at more than 150 sites throughout the city, which include: 8,100 acres (33 km2) of park land, 78 miles (126 km) of greenway, 22 community centers, a BMX championship-caliber race track, 112 tennis courts among 25 locations, 5 public lakes, and 8 public aquatic facilities. The J. C. Raulston Arboretum, an 8-acre (32,000 m²) arboretum and botanical garden in west Raleigh administered by North Carolina State University, maintains a year-round collection that is open daily to the public without charge.
Example Output: What has more than 200 sites throughout the city?

Example Input: Passage: In Armenia Russian has no official status, but it's recognised as a minority language under the Framework Convention for the Protection of National Minorities. According to estimates from Demoskop Weekly, in 2004 there were 15,000 native speakers of Russian in the country, and 1 million active speakers. 30% of the population was fluent in Russian in 2006, and 2% used it as the main language with family, friends or at work. Russian is spoken by 1.4% of the population according to a 2009 estimate from the World Factbook.
Example Output: How many people read Demoskop Weekly in 2004?

Example Input: Passage: For decades after the Second World War, any national symbol or expression was a taboo. However, the Germans are becoming increasingly patriotic. During a study in 2009, in which some 2,000 German citizens age 14 and upwards filled out a questionnaire, nearly 60% of those surveyed agreed with the sentiment "I'm proud to be German." And 78%, if free to choose their nation, would opt for German nationality with "near or absolute certainty". Another study in 2009, carried out by the Identity Foundation in Düsseldorf, showed that 73% of the Germans were proud of their country, twice more than 8 years earlier. According to Eugen Buss, a sociology professor at the University of Hohenheim, there's an ongoing normalisation and more and more Germans are becoming openly proud of their country.
Example Output:
What war was followed by an increase in national symbols?