This property defines the Diacritic Unicodes which can be present at Visual Order Left of the base character
Characters like เ,แ,โ, etc. are listed under Visual Order Left Indic Positional Category.
19 Characters are present in Visual Order Left Indic Positional Category starting with the Unicode point U+0E40 that represents the character เ.
Currently, as per latest version 15.0.0, Unicode supports 15 number of Indic Positional Category. Here are a few examples - Bottom,Bottom And Left,Bottom And Right, etc.