This property defines the Unicodes which allows line break after a Hangul trailing jamo character
Characters like ᆨ,ᆩ,ᆪ, etc. are listed under Hangul Trailing Jamo Line Break.
137 Characters are present in Hangul Trailing Jamo Line Break starting with the Unicode point U+11A8 that represents the character ᆨ.
Currently, as per latest version 15.0.0, Unicode supports 43 number of Line Break. Here are a few examples - Alphabetic,Alphabetic or Ideograph,Break After, etc.