This property defines the Unicodes which has Jamo Short Name as P
Characters like ᄑ,ᇁ, etc. are listed under P Jamo Short Name.
2 Characters are present in P Jamo Short Name starting with the Unicode point U+1111 that represents the character ᄑ.
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.