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 context of relativity, mass is not an additive quantity, in the sense that one can add the rest masses of particles in a system to get the total rest mass of the system. Thus, in relativity usually a more general view is that it is not the sum of rest masses, but the energymomentum tensor that quantifies the amount of matter. This tensor gives the rest mass for the entire system. "Matter" therefore is sometimes considered as anything that contributes to the energymomentum of a system, that is, anything that is not purely gravity. This view is commonly held in fields that deal with general relativity such as cosmology. In this view, light and other massless particles and fields are part of matter.
Example Output: What type of quantity is mass?

Example Input: Passage: The main centre for technical training in Swaziland is the Swaziland College of Technology which is slated to become a full university. It aims to provide and facilitating high quality training and learning in technology and business studies in collaboration with the Commercial, Industrial and Public Sectors. Other technical and vocational institutions are the Gwamile Vocational and Commercial Training Institute located in Matsapha and the Manzini Industrial and Training Centre (MITC) in Manzini. Other vocational institutions include Nhlangano Agricultural Skills Training Center and Siteki Industrial Training Centre.
Example Output: What university offers technical training?

Example Input: Passage: During 2009, the federal government enacted new legislation repealing the Canada Corporations Act, Part II - the Canada Not-for-Profit Corporations Act. This Act was last amended on 10 October 2011 and the act was current till 4 March 2013. It allows for incorporation as of right, by Articles of Incorporation; does away with the ultra vires doctrine for nonprofits; establishes them as legal persons; and substantially updates the governance provisions for nonprofits. Ontario also overhauled its legislation, adopting the Ontario Not-for-Profit Corporations Act during 2010; pending the outcome of an anticipated election during October 2011,[dated info] the new Act is expected to be in effect as of 1 July 2013.
Example Output:
On October 10, 2011 what was repealed?