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: Lions are said to inhabit the mountains of the Gash-Barka Region. There is also a small population of elephants that roam in some parts of the country. Dik-diks can also be found in many areas. The endangered African wild ass can be seen in Denakalia Region. Other local wildlife include bushbucks, duikers, greater kudus, klipspringers, African leopards, oryxs and crocodiles., The spotted hyena is widespread and fairly common. Between 1955 and 2001 there were no reported sightings of elephant herds, and they are thought to have fallen victim to the war of independence. In December 2001 a herd of about 30, including 10 juveniles, was observed in the vicinity of the Gash River. The elephants seemed to have formed a symbiotic relationship with olive baboons, with the baboons using the water holes dug by the elephants, while the elephants use the tree-top baboons as an early warning system.
[EX A]: Where are African leopards predominantly found?

[EX Q]: Passage: The other Ancient Greek dialects, Ionic, Doric, Aeolic, and Arcadocypriot, likely had the same three-way distinction at one point, but Doric seems to have had a fricative in place of /tʰ/ in the Classical period, and the Ionic and Aeolic dialects sometimes lost aspiration (psilosis).
[EX A]: What ancient dialects had the same two-way distinction at one point?

[EX Q]: Passage: In the run-up to the London 2012 Summer Olympic Games and London 2012 Summer Paralympic Games, Eton's purpose-built Dorney Lake, a permanent, eight-lane, 2,200 metre course (about 1.4 miles) in a 400-acre park, officially known throughout the Games as Eton Dorney, provided training facilities for Olympic and Paralympic competitors, and during the Games, hosted the Olympic and Paralympic Rowing competitions as well as the Olympic Canoe Sprint event, attracting over 400,000 visitors during the Games period (around 30,000 per day), and voted the best 2012 Olympic venue by spectators. Access to the 400-acre parkland around the Lake is provided to members of the public, free of charge, almost all the year round.
[EX A]:
In what year was Dorney Lake built?