To guarantee the uniqueness of global identifiers, they must be URIs ( meaning they most likely contain a domain name that has been registered to guarantee uniqueness). 为了保证全局标识符的唯一性,全局标识符必须是URI(就是说很可能包含注册的域名以保证唯一性)。
In this particular case, let's assume that the uniqueness of a Person in the system is its first name-last name combination. 在这个特定例子中,假设系统中Person的惟一性是其姓名的组合。