This property defines the Unicodes which belongs to Supplemental Symbols and Pictographs block
Characters like 🤀,🤁,🤂, etc. are listed under Supplemental Symbols and Pictographs Block.
256 Characters are present in Supplemental Symbols and Pictographs Block starting with the Unicode point U+1F900 that represents the character 🤀.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.