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: Hisham suffered still worse defeats in the east, where his armies attempted to subdue both Tokharistan, with its center at Balkh, and Transoxiana, with its center at Samarkand. Both areas had already been partially conquered, but remained difficult to govern. Once again, a particular difficulty concerned the question of the conversion of non-Arabs, especially the Sogdians of Transoxiana. Following the Umayyad defeat in the "Day of Thirst" in 724, Ashras ibn 'Abd Allah al-Sulami, governor of Khurasan, promised tax relief to those Sogdians who converted to Islam, but went back on his offer when it proved too popular and threatened to reduce tax revenues. Discontent among the Khurasani Arabs rose sharply after the losses suffered in the Battle of the Defile in 731, and in 734, al-Harith ibn Surayj led a revolt that received broad backing from Arabs and natives alike, capturing Balkh but failing to take Merv. After this defeat, al-Harith's movement seems to have been dissolved, but the problem of the rights of non-Arab Muslims would continue to plague the Umayyads.

A: Who suffered worse defeats in the west?
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Q: Passage: In early 12th-century al-Andalus, the Arabian philosopher, Ibn Tufail (Abubacer), wrote discussions on materialism in his philosophical novel, Hayy ibn Yaqdhan (Philosophus Autodidactus), while vaguely foreshadowing the idea of a historical materialism.

A: When was Ibn Tufail born?
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Q: Passage: Atlas, rather than innovate, took a proven route of following popular trends in television and movies—Westerns and war dramas prevailing for a time, drive-in movie monsters another time—and even other comic books, particularly the EC horror line. Atlas also published a plethora of children's and teen humor titles, including Dan DeCarlo's Homer the Happy Ghost (à la Casper the Friendly Ghost) and Homer Hooper (à la Archie Andrews). Atlas unsuccessfully attempted to revive superheroes from late 1953 to mid-1954, with the Human Torch (art by Syd Shores and Dick Ayers, variously), the Sub-Mariner (drawn and most stories written by Bill Everett), and Captain America (writer Stan Lee, artist John Romita Sr.). Atlas did not achieve any breakout hits and, according to Stan Lee, Atlas survived chiefly because it produced work quickly, cheaply, and at a passable quality.

A:
When did Atlas launch?
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