This property defines the Unicodes which belongs to Georgian Supplement block
Characters like ⴀ,ⴁ,ⴂ, etc. are listed under Georgian Supplement Block.
43 Characters are present in Georgian Supplement Block starting with the Unicode point U+2D00 that represents the character ⴀ.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.