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.

Example Input: Sentence: The album reached Britain 's top 75 , with `` Metal Hammer '' magazine being appreciative . 
 Question: what   reached something?
Example Output: The album

Example Input: Sentence: Many composers have been capable of producing music in printed form without the capacity themselves to read or write in musical notation , as long as an amanuensis of some sort is available . 
 Question: what might someone write?
Example Output: musical notation

Example Input: Sentence: An `` optical image stabilizer '' , often abbreviated OIS , IS , or OS , is a mechanism used in a still camera or video camera that stabilizes the recorded image by varying the optical path to the sensor . 
 Question: how does something stabilize something?
Example Output:
by varying the optical path to the sensor