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: Static analysis techniques for software verification can be applied also in the scenario of query languages. In particular, the *Abstract interpretation framework has been extended to the field of query languages for relational databases as a way to support sound approximation techniques. The semantics of query languages can be tuned according to suitable abstractions of the concrete domain of data. The abstraction of relational database system has many interesting applications, in particular, for security purposes, such as fine grained access control, watermarking, etc.
Example Output: Why is static analysis impossible with query languages?

Example Input: Passage: The principles of imperialism are often generalizable to the policies and practices of the British Empire "during the last generation, and proceeds rather by diagnosis than by historical description". British imperialism often used the concept of Terra nullius (Latin expression which stems from Roman law meaning 'empty land'). The country of Australia serves as a case study in relation to British settlement and colonial rule of the continent in the eighteenth century, as it was premised on terra nullius, and its settlers considered it unused by its sparse Aboriginal inhabitants.
Example Output:  Imperialism is less often associated with which sovereignty?

Example Input: Passage: Dell facilities in the United States are located in Austin, Texas; Plano, Texas; Nashua, New Hampshire; Nashville, Tennessee; Oklahoma City, Oklahoma; Peoria, Illinois; Hillsboro, Oregon (Portland area); Winston-Salem, North Carolina; Eden Prairie, Minnesota (Dell Compellent); Bowling Green, Kentucky; Lincoln, Nebraska; and Miami, Florida. Facilities located abroad include Penang, Malaysia; Xiamen, China; Bracknell, UK; Manila, Philippines Chennai, India; Hyderabad, India; Noida, India; Hortolandia and Porto Alegre, Brazil; Bratislava, Slovakia; Łódź, Poland; Panama City, Panama; Dublin and Limerick, Ireland; and Casablanca, Morocco.
Example Output:
What city isn't Dell's New Hampshire facility in?