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.

Ex Input:
Passage: A TiVo service update in July 2008 allowed the system to search and play YouTube videos. In January 2009, YouTube launched "YouTube for TV", a version of the website tailored for set-top boxes and other TV-based media devices with web browsers, initially allowing its videos to be viewed on the PlayStation 3 and Wii video game consoles. In June 2009, YouTube XL was introduced, which has a simplified interface designed for viewing on a standard television screen. YouTube is also available as an app on Xbox Live. On November 15, 2012, Google launched an official app for the Wii, allowing users to watch YouTube videos from the Wii channel. An app is also available for Wii U and Nintendo 3DS, and videos can be viewed on the Wii U Internet Browser using HTML5. Google made YouTube available on the Roku player on December 17, 2013 and in October 2014, the Sony PlayStation 4.

Ex Output:
What did YouTube launch in January 2008?


Ex Input:
Passage: The National Incident Based Reporting System (NIBRS) crime statistics system aims to address limitations inherent in UCR data. The system is used by law enforcement agencies in the United States for collecting and reporting data on crimes. Local, state, and federal agencies generate NIBRS data from their records management systems. Data is collected on every incident and arrest in the Group A offense category. The Group A offenses are 46 specific crimes grouped in 22 offense categories. Specific facts about these offenses are gathered and reported in the NIBRS system. In addition to the Group A offenses, eleven Group B offenses are reported with only the arrest information. The NIBRS system is in greater detail than the summary-based UCR system. As of 2004, 5,271 law enforcement agencies submitted NIBRS data. That amount represents 20% of the United States population and 16% of the crime statistics data collected by the FBI.

Ex Output:
What system do Canadian law enforcement agencies use?


Ex Input:
Passage: Both low-cost and luxury housing were built by the government in the Brasília. The residential zones of the inner city are arranged into superquadras ("superblocks"): groups of apartment buildings along with a prescribed number and type of schools, retail stores, and open spaces. At the northern end of Lake Paranoá, separated from the inner city, is a peninsula with many fashionable homes, and a similar city exists on the southern lakeshore. Originally the city planners envisioned extensive public areas along the shores of the artificial lake, but during early development private clubs, hotels, and upscale residences and restaurants gained footholds around the water. Set well apart from the city are satellite cities, including Gama, Ceilândia, Taguatinga, Núcleo Bandeirante, Sobradinho, and Planaltina. These cities, with the exception of Gama and Sobradinho were not planned.

Ex Output:

What type of private clubs were built by the Brasilian government?