You will be given a definition of a task first, then some input 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.

Beaks are made of an upper and lower mandible .
Output:
All beaks are composed of two jaws , generally known as the upper mandible ( or maxilla ) and lower mandible ( or mandible ) .