Task: Text Simplification
Input (English): in 1833 parts of burke county and buncombe county were combined to form yancey county , and in 1838 the southern part of what was left of buncombe county became henderson county.
Output (English): in 1833 , parts of burke county and buncombe county were combined to form yancey county , and in 1838 the southern part of what was left of buncombe county became henderson county.