instruction:
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.
question:
Passage: According to figures from Britain's Radio Manufacturers Association, 18,999 television sets had been manufactured from 1936 to September 1939, when production was halted by the war.
answer:
How many television sets had been manufactured by 1939?


question:
Passage: To be considered 'enriched', the uranium-235 fraction should be between 3% and 5%. This process produces huge quantities of uranium that is depleted of uranium-235 and with a correspondingly increased fraction of uranium-238, called depleted uranium or 'DU'. To be considered 'depleted', the uranium-235 isotope concentration should be no more than 0.3%. The price of uranium has risen since 2001, so enrichment tailings containing more than 0.35% uranium-235 are being considered for re-enrichment, driving the price of depleted uranium hexafluoride above $130 per kilogram in July 2007 from $5 in 2001.
answer:
Between what percent fraction range of uranium-235 is uranium regarded as unenriched?


question:
Passage: Apart from being an ardent gamer Spielberg has had a long history of involvement in video games. He has been giving thanks to his games of his division DreamWorks Interactive most notable as Someone's in the Kitchen with script written by Animaniacs' Paul Rugg, Goosebumps: Escape from HorrorLand, The Neverhood (all in 1996), Skullmonkeys, Dilbert's Desktop Games, Goosebumps: Attack of the Mutant (all 1997), Boombots (1999), T'ai Fu: Wrath of the Tiger (1999), and Clive Barker's Undying (2001). In 2005 the director signed with Electronic Arts to collaborate on three games including an action game and an award winning puzzle game for the Wii called Boom Blox (and its 2009 sequel: Boom Blox Bash Party). Previously, he was involved in creating the scenario for the adventure game The Dig. In 1996, Spielberg worked on and shot original footage for a movie-making simulation game called Steven Spielberg's Director's Chair. He is the creator of the Medal of Honor series by Electronic Arts. He is credited in the special thanks section of the 1998 video game Trespasser. In 2013, Spielberg has announced he is collaborating with 343 Industries for a live-action TV show of Halo.
answer:

Who wrote the script for Boombots?