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.

Q: Sentence: Losing Barbara caused Dick to become estranged from Bruce for his role . 
 Question: what did something cause someone to?

A: become estranged from Bruce for his role
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Q: Sentence: In the context of a Stryker Brigade Combat Team 's Infantry Rifle Companies , one man from each fireteam in a rifle squad is either the Squad Anti-armor Specialist , armed with the FGM-148 Javelin , or the Squad Designated Marksman , who carries the M4 carbine and M14 rifle . 
 Question: when is someone armed  with something?

A: In the context of a Stryker Brigade Combat Team 's Infantry Rifle Companies
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Q: 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: what is something used  in?

A:
a still camera or video camera ### a still camera ### video camera
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