This property defines the Regional Indicator Unicodes which should not be used as line break opportunities
Characters like 🇦,🇧,🇨, etc. are listed under Regional Indicator Line Break.
26 Characters are present in Regional Indicator Line Break starting with the Unicode point U+1F1E6 that represents the character 🇦.
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.