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: Exchanging "+" and "−" in the expression, i.e. permuting the two solutions of the equation can be viewed as a (very simple) group operation. Similar formulae are known for cubic and quartic equations, but do not exist in general for degree 5 and higher. Abstract properties of Galois groups associated with polynomials (in particular their solvability) give a criterion for polynomials that have all their solutions expressible by radicals, i.e. solutions expressible using solely addition, multiplication, and roots similar to the formula above.
[A]: What degree must it be lower than to have simple formulas?


[Q]: Passage: Modern philosophical materialists extend the definition of other scientifically observable entities such as energy, forces, and the curvature of space. However philosophers such as Mary Midgley suggest that the concept of "matter" is elusive and poorly defined.
[A]: Why does Mary Midgley suggest matter is well defined? 


[Q]: Passage: Mendes revealed that production would begin on 8 December 2014 at Pinewood Studios, with filming taking seven months. Mendes also confirmed several filming locations, including London, Mexico City and Rome. Van Hoytema shot the film on Kodak 35 mm film stock. Early filming took place at Pinewood Studios, and around London, with scenes variously featuring Craig and Harris at Bond's flat, and Craig and Kinnear travelling down the River Thames.
[A]:
What began at Pinewood Studios on 8 December 2004?