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 Q]: Passage: The league held its first season in 1992–93 and was originally composed of 22 clubs. The first ever Premier League goal was scored by Brian Deane of Sheffield United in a 2–1 win against Manchester United. The 22 inaugural members of the new Premier League were Arsenal, Aston Villa, Blackburn Rovers, Chelsea, Coventry City, Crystal Palace, Everton, Ipswich Town, Leeds United, Liverpool, Manchester City, Manchester United, Middlesbrough, Norwich City, Nottingham Forest, Oldham Athletic, Queens Park Rangers, Sheffield United, Sheffield Wednesday, Southampton, Tottenham Hotspur, and Wimbledon. Luton Town, Notts County and West Ham United were the three teams relegated from the old first division at the end of the 1991–92 season, and did not take part in the inaugural Premier League season.
[EX A]: During the leagues first season in 1991 how many clubs was it made up of?

[EX Q]: 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 A]: When was it observed that bombarding uranium with neutrons results in gamma ray emission?

[EX Q]: Passage: are prime. Prime numbers of this form are known as factorial primes. Other primes where either p + 1 or p − 1 is of a particular shape include the Sophie Germain primes (primes of the form 2p + 1 with p prime), primorial primes, Fermat primes and Mersenne primes, that is, prime numbers that are of the form 2p − 1, where p is an arbitrary prime. The Lucas–Lehmer test is particularly fast for numbers of this form. This is why the largest known prime has almost always been a Mersenne prime since the dawn of electronic computers.
[EX A]:
Of what form are Sophie Germain tests?