Given the task definition, example input & output, solve the new input case.
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.
Example: The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Output: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

New input case for you: The atoms in molecules , crystals , metals and diatomic gases are held together by chemical bonds .
Output:
The atoms in molecules , crystals , metals and diatomic gases — indeed most of the physical environment around us — are held together by chemical bonds , which dictate the structure and the bulk properties of matter .