This property defines the Unicodes which are Lowercase Letters
Characters like a,b,c, etc. are listed under Lowercase Letter General Category.
2233 Characters are present in Lowercase Letter General Category starting with the Unicode point U+0061 that represents the character a.
Currently, as per latest version 15.0.0, Unicode supports 30 number of General Category. Here are a few examples - Close Punctuation,Connector Punctuation,Control Character, etc.