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.

Passage: The term cardinal at one time applied to any priest permanently assigned or incardinated to a church, or specifically to the senior priest of an important church, based on the Latin cardo (hinge), meaning "principal" or "chief". The term was applied in this sense as early as the ninth century to the priests of the tituli (parishes) of the diocese of Rome. The Church of England retains an instance of this origin of the title, which is held by the two senior members of the College of Minor Canons of St Paul's Cathedral.
What does the Latin cardo not mean?

Passage: As the Grand Duchy of Finland was part of the Russian Empire from 1809 to 1918, a number of Russian speakers have remained in Finland. There are 33,400 Russian-speaking Finns, amounting to 0.6% of the population. Five thousand (0.1%) of them are late 19th century and 20th century immigrants or their descendants, and the remaining majority are recent immigrants who moved there in the 1990s and later.[citation needed] Russian is spoken by 1.4% of the population of Finland according to a 2014 estimate from the World Factbook.
When did immigrants form the Russian Empire?

Passage: Because the universal acceptance of international laws which in 1948 defined and forbade genocide with the promulgation of the Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG), those criminals who were prosecuted after the war in international courts for taking part in the Holocaust were found guilty of crimes against humanity and other more specific crimes like murder. Nevertheless, the Holocaust is universally recognized to have been a genocide and the term, that had been coined the year before by Raphael Lemkin, appeared in the indictment of the 24 Nazi leaders, Count 3, which stated that all the defendants had "conducted deliberate and systematic genocide—namely, the extermination of racial and national groups..."

Which treaty in 1948 defined and forbade promulgation?