While preparing a document for publication, I wrote an introductory
sentence about the graphemes of SignWriting. Any feedback would be
The grapheme is the fundamental unit of writing for the SignWriting
script. The graphemes of SignWriting are visually iconic. Each
grapheme has a defined size and shape. The main writing graphemes of
SignWriting represent a visual conception: either hands, movement,
dynamics, timing, head, face, or body. These graphemes are used in
Detailed location graphemes are separate from writing graphemes.
Detailed location graphemes are used individually or sequentially.