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.

[EX Q]: Sentence: A nonsurgical alternative involves the use of a miotic to constrict the pupil and prevent the lens from luxating into the anterior chamber . 
 Verb: prevent
[EX A]: what   prevents something?

[EX Q]: Sentence: A Fifth order Fresnel lens manufactured by Parisian glass makers Barbier and Fenestre was installed in the lantern . 
 Verb: manufactured
[EX A]: what was  manufactured?

[EX Q]: Sentence: When Beuerlein called the play in the huddle , it elicited more laughter from his offense , followed by criticism of the call , when he told them , `` Hey guys , I 'm serious ... do your job . '' 
 Verb: told
[EX A]:
who   told something?