Contract
The ERC998 contract is an extension of the ERC721 contract, as it represents non-fungible tokens (NFTs) and can be used to create unique items such as images, in-game items, characters, and more. However, ERC998 also includes additional features such as composition, which allows multiple tokens to be combined into a single token. This is useful for creating more complex NFTs or for representing ownership of multiple assets in a single token.
To understand the basic behavior of the ERC998 contract, you can refer to the ERC721 contract.