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: Min Nan texts, all Hokkien, can be dated back to the 16th century. One example is the Doctrina Christiana en letra y lengua china, presumably written after 1587 by the Spanish Dominicans in the Philippines. Another is a Ming Dynasty script of a play called Romance of the Lychee Mirror (1566), supposedly the earliest Southern Min colloquial text. Xiamen University has also developed an alphabet based on Pinyin, which has been published in a dictionary called the Minnan Fangyan-Putonghua Cidian (閩南方言普通話詞典) and a language teaching book, which is used to teach the language to foreigners and Chinese non-speakers. It is known as Pumindian.
[EX A]: Who has developed an alphabet based on Pumindian?

[EX Q]: Passage: Other less likely contenders are Guam and the United States Virgin Islands, both of which are unincorporated organized territories of the United States. Also, the Northern Mariana Islands and American Samoa, an unorganized, unincorporated territory, could both attempt to gain statehood. Some proposals call for the Virgin Islands to be admitted with Puerto Rico as one state (often known as the proposed "Commonwealth of Prusvi", for Puerto Rico/U.S. Virgin Islands, or as "Puerto Virgo"), and for the amalgamation of U.S. territories or former territories in the Pacific Ocean, in the manner of the "Greater Hawaii" concept of the 1960s. Guam and the Northern Mariana Islands would be admitted as one state, along with Palau, the Federated States of Micronesia, and the Marshall Islands (although these latter three entities are now separate sovereign nations, which have Compact of Free Association relationships with the United States). Such a state would have a population of 412,381 (slightly lower than Wyoming's population) and a land area of 911.82 square miles (2,361.6 km2) (slightly smaller than Rhode Island). American Samoa could possibly be part of such a state, increasing the population to 467,900 and the area to 988.65 square miles (2,560.6 km2). Radio Australia, in late May 2008, issued signs of Guam and the Northern Mariana Islands becoming one again and becoming the 51st state.
[EX A]: What is another likely country for free association?

[EX Q]: Passage: The Iroquois sent runners to the manor of William Johnson in upstate New York. The British Superintendent for Indian Affairs in the New York region and beyond, Johnson was known to the Iroquois as Warraghiggey, meaning "He who does great things." He spoke their languages and had become a respected honorary member of the Iroquois Confederacy in the area. In 1746, Johnson was made a colonel of the Iroquois. Later he was commissioned as a colonel of the Western New York Militia. They met at Albany, New York with Governor Clinton and officials from some of the other American colonies. Mohawk Chief Hendrick, Speaker of their tribal council, insisted that the British abide by their obligations and block French expansion. When Clinton did not respond to his satisfaction, Chief Hendrick said that the "Covenant Chain", a long-standing friendly relationship between the Iroquois Confederacy and the British Crown, was broken.
[EX A]:
What wasn't William Johnson's role in British military?