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 Q]: Passage: Translations of sung texts—whether of the above type meant to be sung or of a more or less literal type meant to be read—are also used as aids to audiences, singers and conductors, when a work is being sung in a language not known to them. The most familiar types are translations presented as subtitles or surtitles projected during opera performances, those inserted into concert programs, and those that accompany commercial audio CDs of vocal music. In addition, professional and amateur singers often sing works in languages they do not know (or do not know well), and translations are then used to enable them to understand the meaning of the words they are singing.
[EX A]: Who can translations of a sung text harm?

[EX Q]: Passage: For more than 40 years, Paul Ekman has supported the view that emotions are discrete, measurable, and physiologically distinct. Ekman's most influential work revolved around the finding that certain emotions appeared to be universally recognized, even in cultures that were preliterate and could not have learned associations for facial expressions through media. Another classic study found that when participants contorted their facial muscles into distinct facial expressions (e.g. disgust), they reported subjective and physiological experiences that matched the distinct facial expressions. His research findings led him to classify six emotions as basic: anger, disgust, fear, happiness, sadness and surprise.
[EX A]: Who has agreed that emotions are discrete?

[EX Q]: Passage: The U.S. government has engaged in efforts to counter Islamism, or violent Islamism, since 2001. These efforts were centred in the U.S. around public diplomacy programmes conducted by the State Department. There have been calls to create an independent agency in the U.S. with a specific mission of undermining Islamism and jihadism. Christian Whiton, an official in the George W. Bush administration, called for a new agency focused on the nonviolent practice of "political warfare" aimed at undermining the ideology. U.S. Defense Secretary Robert Gates called for establishing something similar to the defunct U.S. Information Agency, which was charged with undermining the communist ideology during the Cold War.
[EX A]:
How long as the Canadian government been actively engaged in efforts to counter Islamism?