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: Lobectomy means `` surgical excision of a lobe '' . 
 Question: what   means something?
answer:
Lobectomy


question:
Sentence: It transforms back into Alan just in time for Pete to arrive and see Ed open the airlock . 
 Question: what does someone open?
answer:

the airlock