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: Sky UK Limited (formerly British Sky Broadcasting or BSkyB) is a British telecommunications company which serves the United Kingdom. Sky provides television and broadband internet services and fixed line telephone services to consumers and businesses in the United Kingdom. It is the UK's largest pay-TV broadcaster with 11 million customers as of 2015. It was the UK's most popular digital TV service until it was overtaken by Freeview in April 2007. Its corporate headquarters are based in Isleworth.

Output: Sky UK Limited is now known by what name?


Input: Consider Input: Passage: The strategy behind the formation of the Warsaw Pact was driven by the desire of the Soviet Union to dominate Central and Eastern Europe. This policy was driven by ideological and geostrategic reasons. Ideologically, the Soviet Union arrogated the right to define socialism and communism and act as the leader of the global socialist movement. A corollary to this idea was the necessity of intervention if a country appeared to be violating core socialist ideas and Communist Party functions, which was explicitly stated in the Brezhnev Doctrine. Geostrategic principles also drove the Soviet Union to prevent invasion of its territory by Western European powers.

Output: Who wanted to dominate Western and Eastern Europe?


Input: Consider Input: Passage: "Alsatia", the Latin form of Alsace's name, has long ago entered the English language with the specialized meaning of "a lawless place" or "a place under no jurisdiction" - since Alsace was conceived by English people to be such. It was used into the 20th century as a term for a ramshackle marketplace, "protected by ancient custom and the independence of their patrons". As of 2007, the word is still in use among the English and Australian judiciaries with the meaning of a place where the law cannot reach: "In setting up the Serious Organised Crime Agency, the state has set out to create an Alsatia - a region of executive action free of judicial oversight," Lord Justice Sedley in UMBS v SOCA 2007.


Output: What is Lord Justice Sedley's nationality?