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: As ex-slaves risked beatings for failing to meet the continuing duties , their freedom was limited . 
 Question: who   risked something?
answer:
ex-slaves


question:
Sentence: As Secretary of the Interior , Chandler eradicated serious corruption in the Bureau of Indian Affairs , fully endorsing President Grant 's Peace Policy initiative to civilize American Indian tribes . 
 Question: what did someone eradicate?
answer:
serious corruption ### serious corruption in the Bureau of Indian Affairs


question:
Sentence: When BrdU is integrated into DNA , it is supposed that the bromine deforms the minor groove so that Hoechst dyes can not reach their optimal binding site . 
 Question: what is  supposed?
answer:

it ### When BrdU is integrated into DNA