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.

Sentence: In a traditional ceremony , Command Sgt. Major Richard L. Ross , holding the division color with battle streamers , passed it to General Frederick M. Franks , Jr. , completing the official retirement of the division , and the 3rd Armored Division was removed from the official force structure of the U.S. Army . 
 Question: what   completed something?
Command Sgt. Major Richard L. Ross , holding the division color with battle streamers , passed it to General Frederick M. Franks , Jr.

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?
Fayette County ### Jefferson and Lincoln counties ### the original three counties

Sentence: Instead , much of numerical analysis is concerned with obtaining approximate solutions while maintaining reasonable bounds on errors . 
 Question: what is something concerned  with?

obtaining approximate solutions while maintaining reasonable bounds on errors