(
    [
        (
            specifier: "world.tree.acacia.1",
            center: (16, 17, 1)
        ),
        (
            specifier: "world.tree.acacia.2",
            center: (5, 6, 1)
        ),
        (
            specifier: "world.tree.acacia.3",
            center: (5, 6, 1)
        ),
        (
            specifier: "world.tree.acacia.4",
            center: (15, 16, 1)
        ),
        (
            specifier: "world.tree.acacia.5",
            center: (19, 18, 1)
        ),
    ]
)