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 team led by Enrico Fermi in 1934 observed that bombarding uranium with neutrons produces the emission of beta rays (electrons or positrons from the elements produced; see beta particle). The fission products were at first mistaken for new elements of atomic numbers 93 and 94, which the Dean of the Faculty of Rome, Orso Mario Corbino, christened ausonium and hesperium, respectively. The experiments leading to the discovery of uranium's ability to fission (break apart) into lighter elements and release binding energy were conducted by Otto Hahn and Fritz Strassmann in Hahn's laboratory in Berlin. Lise Meitner and her nephew, the physicist Otto Robert Frisch, published the physical explanation in February 1939 and named the process "nuclear fission". Soon after, Fermi hypothesized that the fission of uranium might release enough neutrons to sustain a fission reaction. Confirmation of this hypothesis came in 1939, and later work found that on average about 2.5 neutrons are released by each fission of the rare uranium isotope uranium-235. Further work found that the far more common uranium-238 isotope can be transmuted into plutonium, which, like uranium-235, is also fissile by thermal neutrons. These discoveries led numerous countries to begin working on the development of nuclear weapons and nuclear power.

Ex Output:
When was it observed that bombarding uranium with neutrons results in gamma ray emission?


Ex Input:
Passage: Turner Classic Movies also airs regularly scheduled weekly film blocks, which are periodically preempted for special themed month-long or seasonal scheduling events, such as the "31 Days of Oscar" film series in the month preceding the Academy Awards and the month-long "Summer Under the Stars" in August; all featured programming has their own distinctive feature presentation bumper for the particular scheduled presentation. The Essentials, currently hosted by Osborne and Sally Field as of 2015[update], is a weekly film showcase airing on Saturday evenings (with a replay on the following Sunday at 6:00 p.m. Eastern Time), which spotlights a different movie and contains a special introduction and post-movie discussion.

Ex Output:
When does 15 Days of Oscar occur?


Ex Input:
Passage: During the mid-2000s, the city witnessed its largest real estate boom since the Florida land boom of the 1920s. During this period, the city had well over a hundred approved high-rise construction projects in which 50 were actually built. In 2007, however, the housing market crashed causing lots of foreclosures on houses. This rapid high-rise construction, has led to fast population growth in the city's inner neighborhoods, primarily in Downtown, Brickell and Edgewater, with these neighborhoods becoming the fastest-growing areas in the city. The Miami area ranks 8th in the nation in foreclosures. In 2011, Forbes magazine named Miami the second-most miserable city in the United States due to its high foreclosure rate and past decade of corruption among public officials. In 2012, Forbes magazine named Miami the most miserable city in the United States because of a crippling housing crisis that has cost multitudes of residents their homes and jobs. The metro area has one of the highest violent crime rates in the country and workers face lengthy daily commutes.

Ex Output:

When did the Florida land bust occur?