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: The Gregorian calendar is a solar calendar. A regular Gregorian year consists of 365 days, but as in the Julian calendar, in a leap year, a leap day is added to February. In the Julian calendar a leap year occurs every 4 years, but the Gregorian calendar omits 3 leap days every 400 years. In the Julian calendar, this leap day was inserted by doubling 24 February, and the Gregorian reform did not change the date of the leap day. In the modern period, it has become customary to number the days from the beginning of the month, and February 29th is often considered as the leap day. Some churches, notably the Roman Catholic Church, delay February festivals after the 23rd by one day in leap years.
answer:
What calendar is a lunar calendar?


question:
Passage: Spielberg won the Academy Award for Best Director for Schindler's List (1993) and Saving Private Ryan (1998). Three of Spielberg's films—Jaws (1975), E.T. the Extra-Terrestrial (1982), and Jurassic Park (1993)—achieved box office records, originated and came to epitomize the blockbuster film. The unadjusted gross of all Spielberg-directed films exceeds $9 billion worldwide, making him the highest-grossing director in history. His personal net worth is estimated to be more than $3 billion. He has been associated with composer John Williams since 1974, who composed music for all save five of Spielberg's feature films.
answer:
How much have all Spielberg-directed films combined earned in adjusted gross?


question:
Passage: Research institutes linked to the third level colleges in the city support the research and innovation capacity of the city and region. Examples include the Tyndall National Institute (ICT hardware research), IMERC (Marine Energy), Environmental Research Institute, NIMBUS (Network Embedded Systems); and CREATE (Advanced Therapeutic Engineering). UCC and CIT also have start-up company incubation centres. In UCC, the IGNITE Graduate Business Innovation Centre aims to foster and support entrepreneurship. In CIT, The Rubicon Centre is a business innovation hub that is home to 57 knowledge based start-up companies.
answer:

What supports the research and innovation of Europe?