This property defines the Unicodes which has Jamo Short Name as G
Characters like ᄀ,ᆨ, etc. are listed under G Jamo Short Name.
2 Characters are present in G Jamo Short Name starting with the Unicode point U+1100 that represents the character ᄀ.
Currently, as per latest version 15.0.0, Unicode supports 53 number of Jamo Short Name. Here are a few examples - A,AE,B, etc.