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.

Sentence: In particular , the title page states `` London , George Allen & Unwin Ltd , Museum Street '' ; the colophon shows the A&U St. George and the Dragon insignia and the addresses of the publishers offices worldwide ; and the title page verso shows the full printing history . 
 Verb: shows
what shows something?

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: prepared
who   prepared something?

Sentence: Instead , much of numerical analysis is concerned with obtaining approximate solutions while maintaining reasonable bounds on errors . 
 Verb: concerned

what is  concerned?