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.

Example Input: Passage: He worked in street construction for a short amount of time, but was unable to cope with the heavy labour. Continuing to attend university as a guest student, he started an apprenticeship as cabinetmaker, which he completed as a journeyman. He was dreaming at that time of starting a daycare facility for children, for which he assumed the ability to make furniture might be useful. After that he did voluntary service in one of psychoanalyst Alfred Adler's clinics for children. In 1922, he did his matura by way of a second chance education and finally joined the University as an ordinary student. He completed his examination as an elementary teacher in 1924 and started working at an after-school care club for socially endangered children. In 1925, he went to the newly founded Pädagogisches Institut and continued studying philosophy and psychology. Around that time he started courting Josefine Anna Henninger, who later became his wife.
Example Output: What was easy for Popper to cope with?

Example Input: Passage: The South Saharan steppe and woodlands ecoregion is a narrow band running east and west between the hyper-arid Sahara and the Sahel savannas to the south. Movements of the equatorial Intertropical Convergence Zone (ITCZ) bring summer rains during July and August which average 100 to 200 mm (3.9 to 7.9 in) but vary greatly from year to year. These rains sustain summer pastures of grasses and herbs, with dry woodlands and shrublands along seasonal watercourses. This ecoregion covers 1,101,700 km2 (425,400 mi2) in Algeria, Chad, Mali, Mauritania, and Sudan.
Example Output: what ecoregion runs north and south in a norrow band?

Example Input: Passage: Albert spent the first six months of 1913 on the training ship HMS Cumberland in the West Indies and on the east coast of Canada. He was rated as a midshipman aboard HMS Collingwood on 15 September 1913, and spent three months in the Mediterranean. His fellow officers gave him the nickname "Mr. Johnson". One year after his commission, he began service in the First World War. He was mentioned in despatches for his action as a turret officer aboard Collingwood in the Battle of Jutland (31 May – 1 June 1916), an indecisive engagement with the German navy that was the largest naval action of the war. He did not see further combat, largely because of ill health caused by a duodenal ulcer, for which he had an operation in November 1917.
Example Output:
In what year did Albert leave the military?