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.

Input: Consider Input: Passage: Selenizza is a naturally occurring solid hydrocarbon bitumen found in the native asphalt deposit of Selenice, in Albania, the only European asphalt mine still in use. The rock asphalt is found in the form of veins, filling cracks in a more or less horizontal direction. The bitumen content varies from 83% to 92% (soluble in carbon disulphide), with a penetration value near to zero and a softening point (ring & ball) around 120 °C. The insoluble matter, consisting mainly of silica ore, ranges from 8% to 17%.

Output: The soluble matter consists mainly of silica ore and ranges from what percentage?


Input: Consider Input: Passage: Vaudreuil and Montcalm were minimally resupplied in 1758, as the British blockade of the French coastline limited French shipping. The situation in New France was further exacerbated by a poor harvest in 1757, a difficult winter, and the allegedly corrupt machinations of François Bigot, the intendant of the territory. His schemes to supply the colony inflated prices and were believed by Montcalm to line his pockets and those of his associates. A massive outbreak of smallpox among western tribes led many of them to stay away from trading in 1758. While many parties to the conflict blamed others (the Indians blamed the French for bringing "bad medicine" as well as denying them prizes at Fort William Henry), the disease was probably spread through the crowded conditions at William Henry after the battle. Montcalm focused his meager resources on the defense of the St. Lawrence, with primary defenses at Carillon, Quebec, and Louisbourg, while Vaudreuil argued unsuccessfully for a continuation of the raiding tactics that had worked quite effectively in previous years.

Output: What was causing Old France to have issues with resupplying?


Input: Consider Input: Passage: John Keate, Head Master from 1809 to 1834, took over at a time when discipline was poor. Anthony Chenevix-Trench, Head Master from 1964 to 1970, abolished the birch and replaced it with caning, also applied to the bare posterior, which he administered privately in his office. Chenevix-Trench also abolished corporal punishment administered by senior boys. Previously, House Captains were permitted to cane miscreants over the seat of the trousers. This was a routine occurrence, carried out privately with the boy bending over with his head under the edge of a table. Less common but more severe were the canings administered by Pop (see Eton Society below) in the form of a "Pop-Tanning", in which a large number of hard strokes were inflicted by the President of Pop in the presence of all Pop members (or, in earlier times, each member of Pop took it in turns to inflict a stroke). The culprit was summoned to appear in a pair of old trousers, as the caning would cut the cloth to shreds. This was the most severe form of physical punishment at Eton.


Output: Who started the practice of using a birch to discipline students?