You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Solution: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Why? The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

New input: A doctoral advisor ( or dissertation director or dissertation advisor ) is a university faculty member whose helps guide graduate students who are candidates for a doctorate degree .
Solution:
A doctoral advisor ( also dissertation director or dissertation advisor ) is a member of a university faculty whose role is to guide graduate students who are candidates for a doctorate , helping them select coursework , as well as shaping , refining and directing the students ' choice of sub-discipline in which they will be examined or on which they will write a dissertation .