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 early years, Universal had a "clean picture" policy. However, by April 1927, Carl Laemmle considered this to be a mistake as "unclean pictures" from other studios were generating more profit while Universal was losing money.
Example Output: What policy was established in April 1927?

Example Input: Passage: Mastic asphalt is a type of asphalt which differs from dense graded asphalt (asphalt concrete) in that it has a higher asphalt/bitumen (binder) content, usually around 710% of the whole aggregate mix, as opposed to rolled asphalt concrete, which has only around 5% added asphalt/bitumen. This thermoplastic substance is widely used in the building industry for waterproofing flat roofs and tanking underground. Mastic asphalt is heated to a temperature of 210 C (410 F) and is spread in layers to form an impervious barrier about 20 millimeters (0.79 inches) thick.
Example Output: What percentage of concrete is in mastic asphalt?

Example Input: Passage: It was not until 9 June 1982, with the Circulaire sur la langue et la culture regionales en Alsace (Memorandum on regional language and culture in Alsace) issued by the Vice-Chancellor of the Academie Pierre Deyon, that the teaching of German in primary schools in Alsace really began to be given more official status. The Ministerial Memorandum of 21 June 1982, known as the Circulaire Savary, introduced financial support, over three years, for the teaching of regional languages in schools and universities. This memorandum was, however, implemented in a fairly lax manner.
Example Output:
When was the Vice-Chancellor elected?