Olga, to answer your question more
Your first symbol shows a single arm twist - the hand flips 90 degrees and does not
return to the starting position
The second symbol shows the arm twisting twice in the same
direction - the movement back to the starting position is not
relevant to the sign and is not written;
The third symbol shows a twist back and forth - the hand flips 90
degrees and returns to the starting position;
The fourth symbol is what I think you meant by "trill" - the arm twists back and
forth quickly; it's the symbol I would use for the ASL sign "tree" and is the
same symbol you sent in your clarification to Charles. The arrowhead was
added only so the reader knows which hand is used (in this case the right hand,
because the arrowhead is black), but it's not required.
Hope this helps,
On Mar 4, 2011, at 10:17 AM, Olga Drozdenko wrote:
Valerie, thank you!
But know I have a
question about the difference between these 4 symbols (I'm sorry for asking,
I've just started learning SignWriting, may be I could read these
information somewhere in the books).