{
    "entity": {
        "id": "str",
        "type": { "enum": [ "polymer", "non-polymer", "water", "macrolide" ] },
        "src_method": "str",
        "pdbx_description": "str",
        "formula_weight": { "float": [ 6, 3, 1 ] },
        "pdbx_number_of_molecules": "int",
        "details": "str",
        "pdbx_mutation": "str",
        "pdbx_fragment": "str",
        "pdbx_ec": "str"
    }
}