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: European colonialism in the Sahara began in the 19th century. France conquered the regency of Algiers from the Ottomans in 1830, and French rule spread south from Algeria and eastwards from Senegal into the upper Niger to include present-day Algeria, Chad, Mali then French Sudan including Timbuktu, Mauritania, Morocco (1912), Niger, and Tunisia (1881). By the beginning of the 20th century, the trans-Saharan trade had clearly declined because goods were moved through more modern and efficient means, such as airplanes, rather than across the desert.

Output: When did the Ottomans conquer France?


Input: Consider Input: Passage: For temperature studies, subjects must remain awake but calm and semi-reclined in near darkness while their rectal temperatures are taken continuously. Though variation is great among normal chronotypes, the average human adult's temperature reaches its minimum at about 05:00 (5 a.m.), about two hours before habitual wake time. Baehr et al. found that, in young adults, the daily body temperature minimum occurred at about 04:00 (4 a.m.) for morning types but at about 06:00 (6 a.m.) for evening types. This minimum occurred at approximately the middle of the eight hour sleep period for morning types, but closer to waking in evening types.

Output: What physical factor must be periodicly monitored in temperature studies?


Input: Consider Input: Passage: Bath Rugby play at the Recreation Ground in Bath, and the Somerset County Cricket Club are based at the County Ground in Taunton. The county gained its first Football League club in 2003, when Yeovil Town won promotion to Division Three as Football Conference champions. They had achieved numerous FA Cup victories over football League sides in the past 50 years, and since joining the elite they have won promotion again—as League Two champions in 2005. They came close to yet another promotion in 2007, when they reached the League One playoff final, but lost to Blackpool at the newly reopened Wembley Stadium. Yeovil achieved promotion to the Championship in 2013 after beating Brentford in the playoff final. Horse racing courses are at Taunton and Wincanton.


Output: In what year did Blackpool acquire a Football League club?