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 Input:
Passage: The Slavic autonym *Slověninъ is usually considered (e.g. by Roman Jakobson) a derivation from slovo "word", originally denoting "people who speak (the same language)," i.e. people who understand each other, in contrast to the Slavic word denoting "foreign people" – němci, meaning "mumbling, murmuring people" (from Slavic *němъ – "mumbling, mute").

Ex Output:
Who came up with the Slavic autonym?


Ex Input:
Passage: The use of animal fur in clothing dates to prehistoric times. It is currently associated in developed countries with expensive, designer clothing, although fur is still used by indigenous people in arctic zones and higher elevations for its warmth and protection. Once uncontroversial, it has recently been the focus of campaigns on the grounds that campaigners consider it cruel and unnecessary. PETA, along with other animal rights and animal liberation groups have called attention to fur farming and other practices they consider cruel.

Ex Output:
What has not been used for clothing since prehistoric times?


Ex Input:
Passage: BYU accepted 49 percent of the 11,423 people who applied for admission in the summer term and fall semester of 2013. The average GPA for these admitted students was 3.82. U.S. News and World Report describes BYU's selectivity as being "more selective" and compares it with such universities as the University of Texas at Austin and The Ohio State University. In addition, BYU is ranked 26th in colleges with the most freshman Merit Scholars, with 88 in 2006. BYU has one of the highest percentage of accepted applicants that go on to enroll (78 percent in 2010).

Ex Output:

What school accepted 49% of the 11,324 people who applied in 2013?