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 north tower was quickly rebuilt as a stubby , flat-roofed structure . 
 Question: what was something rebuilt  as?
answer:
a stubby , flat-roofed structure .


question:
Sentence: Although the area was known for its healthy waters at least since the late Middle Ages , the spa was officially founded in 1769 . 
 Question: when was something known  for something?
answer:
since the late Middle Ages


question:
Sentence: The tank is known as the SV-001 , which not only increases the player 's offense , but considerably adds to their defense . 
 Question: what is  known  as something?
answer:

tank


