instruction:
In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.
question:
Sentence: The psychological impact of this first transformation caused Beast to experience short-term amnesia and also made it difficult for him to control his animalistic instincts , which would cause him to slip into an uncontrollable berserker rage during combat .
Question: why did something experience something?
answer:
The psychological impact of this first transformation

question:
Sentence: For use in icy ground , up to 18 rubber pads can be replaced by the same number of grousers , which are stored in the vehicle 's bow when not in use .
Question: what can be replaced by something?
answer:
up to 18 rubber pads ### rubber pads

question:
Sentence: Having finished his apprenticeship with Hammond , Keats registered as a medical student at Guy 's Hospital and began studying there in October 1815 .
Question: where did someone study?
answer:
there ### at Guy 's Hospital