person/rembrandt/4 matches the site

public static Person Rembrandt_Name_Parts()
{
    var rembrandt = new Person()
        .WithContext()
        .WithId("https://linked.art/example/person/rembrandt/4")
        .WithLabel("Rembrandt");

    var name = new Name("Rembrandt Harmenzoon van Rijn").AsPrimaryName();
    name.Part = [
        new Name("Rembrandt").WithClassifiedAs(Aat.GivenName),
        new Name()
            .WithId("https://linked.art/example/Name/Harmenzoon")
            .WithClassifiedAs(Aat.MiddleName),
        new Name("van Rijn").WithClassifiedAs(Aat.FamilyName)
    ];
    rembrandt.IdentifiedBy = [name];

    return rembrandt;
}

• Role shortcuts AsPrimaryName, AsAccessionNumber and AsSystemAssignedNumber each add a single classification, with the AAT terms Primary Name, Accession Number and System Number.

var person = new Person
{
    Context = ["https://linked.art/ns/v1/linked-art.json"],
    Id = "https://linked.art/example/person/rembrandt/4",
    Label = "Rembrandt",
    IdentifiedBy =
    [
        new Name("Rembrandt Harmenzoon van Rijn")
        {
            ClassifiedAs = [Aat.PrimaryName],
            Part =
            [
                new Name("Rembrandt")
                {
                    ClassifiedAs = [Aat.GivenName],
                },
                new Name
                {
                    Id = "https://linked.art/example/Name/Harmenzoon",
                    ClassifiedAs = [Aat.MiddleName],
                },
                new Name("van Rijn")
                {
                    ClassifiedAs = [Aat.FamilyName],
                },
            ],
        },
    ],
};

Generated from the object the example builds: every property that is set, as object initialisers, with the vocabulary constants where a term is in the registry. The fluent helpers are a convenience, not a requirement; this form and the one as written produce the same JSON.