This property defines the Unicodes which is used to indicate line breaks for conditional Japanese line starters
Characters like ぁ,ぃ,ぅ, etc. are listed under Conditional Japanese Starter Line Break.
60 Characters are present in Conditional Japanese Starter Line Break starting with the Unicode point U+3041 that represents the character ぁ.
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.