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.

Ex Input:
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 something supposed?

Ex Output:
the bromine deforms the minor groove so that Hoechst dyes can not reach their optimal binding site

Ex Input:
Sentence: Fayette County was one of the original three counties created from the former Kentucky County , Virginia by the Virginia Act in 1780 , along with Jefferson and Lincoln counties , and which together separated from Virginia in 1792 to become the state of Kentucky .
Question: what separated from something?

Ex Output:
Fayette County ### Jefferson and Lincoln counties ### the original three counties

Ex 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?

Ex Output:
by varying the optical path to the sensor