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.

[Q]: Sentence: Calor provide gas both for use in bulk tanks and in smaller gas cylinders . 
 Verb: provide
[A]: what   provides something?


[Q]: Sentence: The natural sparkling waters of Duszniki are used in treatment of a variety of illnesses , including cardiac problems , gastrical problems . 
 Verb: used
[A]: what is  used  in something?


[Q]: Sentence: Frowin was chosen as the abbey 's first abbot . 
 Verb: chosen
[A]:
what was  chosen?