Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

[Q]: the sahel is a narrow belt of land in west africa.
[A]: sahel


[Q]: he is more often called davy crockett.
[A]: davy crockett


[Q]: data corruption is errors in computer data that happens while the computer is reading, writing, storing, transmitting or processing the data.
[A]:
data corruption