I have understood the differences between Fongible tokens and Non Fongibles tokens (NFT).
I have read a new kind of token called SFT: Semi interchangeable token. It is supposed to be a mix between FT and NFT.
ERC-1155 is a mix between FT and NFT too, but i do not see people saying ERC-1155 is a SFT.
So are there some differences between ERC-1155 and SFT definition ?