Instructions: 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.
Input: Their name has two parts : " endo- " and " -orphin " ; these are short forms of the words " endogenous " and " morphine " .
Output:
It consists of two parts : " endo- " and " -orphin " ; these are short forms of the words " endogenous " and " morphine " , intended to mean " a morphine-like substance originating from within the body " .