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.

[Q]: Passage: Noteworthy Irish mandolinists include Andy Irvine (who, like Johnny Moynihan, almost always tunes the top E down to D, to achieve an open tuning of GDAD), Paul Brady, Mick Moloney, Paul Kelly and Claudine Langille. John Sheahan and the late Barney McKenna, respectively fiddle player and tenor banjo player with The Dubliners, are also accomplished Irish mandolin players. The instruments used are either flat-backed, oval hole examples as described above (made by UK luthier Roger Bucknall of Fylde Guitars), or carved-top, oval hole instruments with arched back (made by Stefan Sobell in Northumberland). The Irish guitarist Rory Gallagher often played the mandolin on stage, and he most famously used it in the song "Going To My Hometown."
[A]: Who are some of the famous Italian Mandolinists?

[Q]: Passage: In contrast to Catholic allegations of rationalism and naturalism, Protestant objections are more likely to be based on allegations of mysticism, occultism, and even Satanism. Masonic scholar Albert Pike is often quoted (in some cases misquoted) by Protestant anti-Masons as an authority for the position of Masonry on these issues. However, Pike, although undoubtedly learned, was not a spokesman for Freemasonry and was also controversial among Freemasons in general. His writings represented his personal opinion only, and furthermore an opinion grounded in the attitudes and understandings of late 19th century Southern Freemasonry of the USA. Notably, his book carries in the preface a form of disclaimer from his own Grand Lodge. No one voice has ever spoken for the whole of Freemasonry.
[A]: What are some Protestant rewards to Freemasonry?

[Q]: Passage: Harvard was formed in 1636 by vote of the Great and General Court of the Massachusetts Bay Colony. It was initially called "New College" or "the college at New Towne". In 1638, the college became home for North America's first known printing press, carried by the ship John of London. In 1639, the college was renamed Harvard College after deceased clergyman John Harvard, who was an alumnus of the University of Cambridge. He had left the school 779 and his library of some 400 books. The charter creating the Harvard Corporation was granted in 1650.
[A]:
What was the ship of John of London called?