Teacher: In this task, you are given a sentence and a verb from the sentence. Your task is to generate a set of wh-questions starting with who, what, when, where, why, how, how much. The generated questions must contain the verb and the answers to these questions are phrases in the input sentence. The answer to the questions is associated with a specific semantic role. The answer to these questions is associated with a specific semantic role. The questions must use pronouns instead of direct nouns that could be used to refer to various roles present in the sentence. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is unique (iii) its answer is a continuous text span from the paragraph.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Sentence: The album is named after the discredited pseudoscience of phrenology , the study of head shapes to determine intelligence and character , which was used to rationalize racism during the 19th century in the United States .
 Verb: named
Solution: what is  named  after something?
Reason: It contains the verb named which is given in the input. It is a question that starts with a ‘wh’ word. The answer to this question is the album and it can be found in the sentence. Also, it does not use any nouns from the sentence but uses something which is a pronoun to refer to one of the roles present.

Now, solve this instance: Sentence: The State Chancellory prepared a draft , which was discussed during five sessions of the Council of Ministers , where alterations were made to further strengthen the emperor 's prerogatives at the expense of the new parliament . 
 Verb: strengthen
Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
what was  strengthened?