Q: 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: 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 genocidenamely, the extermination of racial and national groups..."
A:
Which treaty in 1948 defined and forbade promulgation?