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: Getting there requires a fairly steep hike from the Rim Drive trailhead . 
 Question: what   requires something?
answer:
Getting there


question:
Sentence: Under an Elizabethan statute , the Erection of Cottages Act 1588 , the cottage had to be built with at least of land . 
 Question: what did something have  to do?
answer:
be built with at least of land


question:
Sentence: The storm caused extensive damage to West Edmonton Mall ; a small glass section of the roof collapsed under the weight of the rainwater , causing water to drain onto the mall 's indoor ice rink . 
 Question: why did something drain  onto something?
answer:

a small glass section of the roof collapsed