TASK DEFINITION: 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.
PROBLEM: 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?

SOLUTION: In the context of a Stryker Brigade Combat Team 's Infantry Rifle Companies

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

SOLUTION: Losing Barbara

PROBLEM: Sentence: Since there was nothing objectionable in it , most likely it was somehow lost by Bentley 's printer when the `` Etymology '' and `` Extracts '' were moved . 
 Question: where might something have been lost?

SOLUTION:
by Bentley 's printer