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: In the following months, NATO took a wide range of measures to respond to the threat of terrorism. On 22 November 2002, the member states of the Euro-Atlantic Partnership Council (EAPC) decided on a Partnership Action Plan against Terrorism, which explicitly states, "EAPC States are committed to the protection and promotion of fundamental freedoms and human rights, as well as the rule of law, in combating terrorism." NATO started naval operations in the Mediterranean Sea designed to prevent the movement of terrorists or weapons of mass destruction as well as to enhance the security of shipping in general called Operation Active Endeavour.
Example Output: What did terrorism respond to?

Example Input: Passage: If matter and energy are seen as necessary to explain the physical world, but incapable of explaining mind, dualism results. Emergence, holism, and process philosophy seek to ameliorate the perceived shortcomings of traditional (especially mechanistic) materialism without abandoning materialism entirely.
Example Output: What is unnecessary to explain the physical world? 

Example Input: Passage: Arsenal's longest-running and deepest rivalry is with their nearest major neighbours, Tottenham Hotspur; matches between the two are referred to as North London derbies. Other rivalries within London include those with Chelsea, Fulham and West Ham United. In addition, Arsenal and Manchester United developed a strong on-pitch rivalry in the late 1980s, which intensified in recent years when both clubs were competing for the Premier League title – so much so that a 2003 online poll by the Football Fans Census listed Manchester United as Arsenal's biggest rivals, followed by Tottenham and Chelsea. A 2008 poll listed the Tottenham rivalry as more important.
Example Output:
Who is Chelsea's biggest rivalry with?