instruction:
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.
question:
Passage: The oak forests of the southern and central Appalachians consist largely of black, northern red, white, chestnut and scarlet oaks (Quercus velutina, Q. rubra, Q. alba, Q. prinus and Q. coccinea) and hickories, such as the pignut (Carya glabra) in particular. The richest forests, which grade into mesic types, usually in coves and on gentle slopes, have dominantly white and northern red oaks, while the driest sites are dominated by chestnut oak, or sometimes by scarlet or northern red oaks. In the northern Appalachians the oaks, except for white and northern red, drop out, while the latter extends farthest north.
answer:
What is the dominate type of oak in the Appalachians?


question:
Passage: African Americans made up 41 percent of death row inmates while making up only 12.6 percent of the general population. (They have made up 34 percent of those actually executed since 1976.) However, that number is lower than that of prison inmates, which is 47 percent. According to the US Department of Justice, African Americans accounted for 52.5% of homicide offenders from 1980 to 2008, with whites 45.3% and Native Americans and Asians 2.2%. This means African Americans are less likely to be executed on a per capita basis. However, according to a 2003 Amnesty International report, blacks and whites were the victims of murder in almost equal numbers, yet 80 percent of the people executed since 1977 were convicted of murders involving white victims. 13.5% of death row inmates are of Hispanic or Latino descent, while they make up 17.4% of the general population.
answer:
What percentage of American death row prisoners are South American


question:
Passage: Federations often have special procedures for amendment of the federal constitution. As well as reflecting the federal structure of the state this may guarantee that the self-governing status of the component states cannot be abolished without their consent. An amendment to the constitution of the United States must be ratified by three-quarters of either the state legislatures, or of constitutional conventions specially elected in each of the states, before it can come into effect. In referendums to amend the constitutions of Australia and Switzerland it is required that a proposal be endorsed not just by an overall majority of the electorate in the nation as a whole, but also by separate majorities in each of a majority of the states or cantons. In Australia, this latter requirement is known as a double majority.
answer:

What doesn't federations have for amendments of the constitution?