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: About 75% of the population is employed in subsistence agriculture upon Swazi Nation Land (SNL). In contrast with the commercial farms, Swazi Nation Land suffers from low productivity and investment. This dual nature of the Swazi economy, with high productivity in textile manufacturing and in the industrialised agricultural TDLs on the one hand, and declining productivity subsistence agriculture (on SNL) on the other, may well explain the country's overall low growth, high inequality and unemployment.

Output: Where does the population get 75% of its income?


Input: Consider Input: Passage: New features and functionality in Windows 8 include a faster startup through UEFI integration and the new "Hybrid Boot" mode (which hibernates the Windows kernel on shutdown to speed up the subsequent boot), a new lock screen with a clock and notifications, and the ability for enterprise users to create live USB versions of Windows (known as Windows To Go). Windows 8 also adds native support for USB 3.0 devices, which allow for faster data transfers and improved power management with compatible devices, and hard disk 4KB Advanced Format support, as well as support for near field communication to facilitate sharing and communication between devices.

Output: What never happens during Hybrid Boot mode?


Input: Consider Input: Passage: For 2016, U.S. News & World Report ranked BYU as tied for 66th for national universities in the United States. A 2013 Quarterly Journal of Economics study of where the nation's top high school students choose to enroll ranked BYU No. 21 in its peer-reviewed study. The Princeton Review has ranked BYU the best value for college in 2007, and its library is consistently ranked in the nation's top ten — No. 1 in 2004 and No. 4 in 2007. BYU is also ranked No. 19 in the U.S. News and World Report's "Great Schools, Great Prices" lineup, and No. 12 in lowest student-incurred debt. Due in part to the school's emphasis on undergraduate research, in rankings for 2008-2009, BYU was ranked No. 10 nationally for the number of students who go on to earn PhDs, No. 1 nationally for students who go on to dental school, No. 6 nationally for students who go on to law school, and No. 10 nationally for students who go on to medical school. BYU is designated as a research university with high research activity by the Carnegie Foundation for the Advancement of Teaching.]] Forbes Magazine ranked it as the No. 1 "Top University to Work For in 2014" and as the best college in Utah.


Output: Where did BYU rank in 2013 in the U.S. News & World Report rankings?