One dot between groups
No two dots touch. Lines never stand alone without a dot.
These conventions describe sequences of dots and vertical strokes, rather than a grammar shared by every glyph.

Groups of vertical lines, separated by a single dot. From the simplest form, a rhythm can extend without end.
No two dots touch. Lines never stand alone without a dot.
A dot may begin the sequence, or the first group of lines may lead.
An arc may appear above or below the marks, or be absent altogether.